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COMMUNICATION, NAVIGATION &
SURVEILLANCE MANUAL
[Contains information, guidance, procedures and instructions applicable to Nagpur Airport]
AIRPORTS AUTHORITY OF INDIA
Dr. Babasaheb Ambedkar International Airport,
NAGPUR-440005
Document No. AAI/AU/CNS MANUAL/01
Edition: 01
Updated Till: 1st January 2013
Issue Date: 31January 2013
Next due date: 1st January 2014
Responsibility for Documentation:
Dy. General Manager (CNS), O/o The Airport Director,
AIRPORTS AUTHORITY OF INDIA, Dr B.A.I. Airport, Nagpur,
Tel: 0712 2807515, Fax: 0712 2288011, Email: [email protected]
DISTRIBUTION:
GM (N&S), AAI, RAJIV-GANDHI BHAVAN, NEW-DELHI
GM (CNS-WR), AAI, CSI AIRPORT, MUMBAI
AIRPORT DIRECTOR, AAI, NAGPUR
Page 1 of 162
PREFACE
This Manual on Communication, Navigation, Surveillance and Automation
(ATM) services is prepared and maintained by the Aeronautical
Communication Station, Nagpur.
Its main aim is to provide the executives at the station (both existing and
the newly posted ones) and the officers on tour with information at a glance
about the city, the airport and the CNS/ATM facilities, the latter being of
main concern. The Manual provides with latest data available along with the
processes, procedures and instructions that are essential for the provision of
safe and efficient air services.
This Manual has been developed as a part of comprehensive documentation
of the CNS procedures, processes and facilities supporting conformance to
organizational requirements and compliance with the CHQ CNS Manual.
The brief description of city in the beginning provides the reader with
an outline of the city landscape.
The information on the CNS/ATM facilities available at Nagpur Airport
contained in this manual fulfils the essential requirements laid down in
the CHQ CNS Manual.
The section on support and maintenance of CNS/ATM facilities
presages high degree of reliability, availability and integrity of CNS
facilities.
The technical description of all the CNS/ATM facilities along with the
operation and maintenance plan has been lucidly summarized for quick
review.
Safety management plans have also been explained precisely.
Moreover presentation of details through Flow charts, pictures and Tables
has been preferred for easy understanding and to help frame a broad view
about the operation of CNS.
Future editions of the Manual will be improved based on the experience
gained and suggestions & feedback received from the users of this Manual.
Views, comments & suggestions for improvement of this manual may be
sent to the DGM(CNS), O/o The Airport Director, Airports Authority of India
Dr.B.A.I.Airport Nagpur.
(DGM (CNS), NAGPUR)
Page 2 of 162
Section 1.0
CONTENTS
Sec. No.
1.0
1.1
2.0
3.0
4.0
5.0
6.0
6.1
6.2
6.3
7.0
7.1
7.2
7.3
8.0
8.1
9.0
10.0
11.0
12.0
13.0
14.0
Sub title
Title Page
Preface
Vision and Mission
Contents
Record of Amendment
Brief Description of Nagpur
ABBREVIATIONS
Classification of Facilities
Support
and Maintenance
of
CNS/ATM Facilities
Technical Description of Various
CNS/ATM Facilities
Functional Specification
Safe Operation- General
Corrective
and
Preventive
Maintenance
Facility Operation and Maintenance
Plan
Test Equipments
SMU Details
Interruption to Service
Organizational Structure, Functions
& Responsibilities
HRD Details
Status of CNS Projects
Record System
Documents used in CNS, Nagpur
Annexure A: Spares/ LRU available
Annexure B:Important CNS circulars
Annexure C: Unserviceability details
Page no.
1
2
2
3
4
5
7
8
12
19
20
22
25
29
34
36
37
38
40
49
50
53
55
60
76
Page 3 of 162
Section 1.1
Record of Amendments: [Major changes in revised edition]
Date
Sec. No.
Page No.
REASON OF AMENDMENT
1/11
4.0
12
New addition
29/2
5.0
18
New addition
29/2
5.0
19,20
updated
29/2
6.0
24
New facility added
29/2
6.3
30,32
updated
29/2
8.1
45
updated
29/10
Annex C
83
updated
17/04
5.0
17
New addition
17/04
6.0
23
New addition
17/04
6.3
29 & 31
updated
17/04
9.0
59
New addition
116,138 &
144
New addition
17/04
Revision Approved
(Signature)
Page 4 of 162
Section 2.0
Brief Description of NAGPUR
Nagpur is the second Capital city of Maharashtra and is also called the Orange City due
to large scale production of oranges. Nagpur comes under Vidarbha region in North
Eastern Maharashtra and is at the centre of the nation (zero mile point). It is well
connected with other major cities by Rail/ Road and air.
Area:
Population:
220 Sq Km
2.5 Million as per 2001 census
Tourist Places: (i)
Ramtek: 48 Km from Nagpur on NH-7 is famous for Ram Mandir which
stands atop a hill.
(ii)
Khindsi Lake: 56 Km from Nagpur and 8 Km from Ramtek is a beautiful lake
at the foot of Ramtek hill and is picnic spot.
(iii)
Pench Tiger Reserve: Close to Panoi on NH-7 is primarily a sanctuary of
tigers, leopards and other large jungle cats famous for wide variety of fauna
and flora.
Distance from Railway Station:
8 Km
Nagpur Airport is one of the first few airports setup in the country and associated with
the pioneering flights by J.R.D. Tata. It came into existence in the year 1920 during the
reign of Raja Bhosle. This airport has been declared International airport with the
inauguration of Air Arabia flight in Nagpur/ Sharjah sector w.e.f 16th October 2005 and
has been renamed as Dr. Babasaheb Ambedkar International Airport. The airport is also
ISO 9001:2000 certified w.e.f 22nd July 2005. Haj operation is also there since last four
years with B-747 type of aircraft. Expansion of Terminal Building project started in 2006
and the expanded new terminal building was inaugurated on 14 April 2008.
Page 5 of 162
The salient features of this project are: (i)
The existing Terminal Building has been expanded on all the sides and
area increased from 7800 Sq m to 17500 Sq m with main extension of
4300 Sq m towards International Arrival and 14 meter wide Canopy on the
city side. This building can handle 600 departure and 600 arrival
passengers at a time.
(ii)
Central Air conditioning with two numbers of Passenger Boarding Bridge
(Aerobridges), escalators, elevators, baggage conveyors, Fire alarm &
detection system, BMS etc.
(iii)
Passenger facilities like Restaurant, Child care room, Duty free shop,
Bank/ATM, medical inspection room, spacious car park for 600 cars.
(iv)
New PA system, FIDS system, car hailing has been installed and,
Surveillance CCTV is planned for installation.
The Airlines operating at this airport are: (a) International: Indian, Air Arabia, Qatar Airways & Air India Express
(b) Domestic:
Indian, Jet Airways, Jet lite (Erstwhile Air Sahara), Simplifly Deccan
(Erstwhile Air Deccan), Indigo & King fisher
Technical Data of the Airport:
a) Aerodrome Reference Code:
4D
b) Elevation:
1033 Feet (314.90 meter)
c) ARP coordinates:
210528N 0790259E
d) Main RWY orientation:
14/32
e) RWY dimension:
3200m X 45m
f) Apron dimension
391.75m X 144.50m
g) Parking Bays
7 AB 320 (When one B747 is parked, then 4
AB320 can be parked)
Air Force:
Air Force 44 Wing is based at Nagpur. It is also base of IL76 (Gajraj) Aircraft. About
4 IL76 are parked at IAF Apron and also carry out their routine training exercises.
Page 6 of 162
Section 3.0
Abbreviations:
AAI
ACS
ADS-B
AFTN
AM
AMC
AMSS
APD
ATC
ATM
BCAS
CHQ
CIP
CISF
CNS
CPMS
CRSD
DFMD
DME
DTO
DVOR
E/M
EPABX
ETA
ETD
FIU
GAGAN
HHMD
ICAO
ID
MT
NOTAM
OIC
PA System
PIC
RCU
RED
RHQ
SM
SMU
UTC
VIP
Airports Authority of India
Aeronautical communication station
Automatic Dependant Surveillance- Broadcast
Aeronautical Fixed Telecommunication Network
Asst. Manager
Annual Maintenance Contract
Automatic Message Switching system
Airport Director
Air Traffic Control
Automation
Bureau of Civil Aviation Security
Corporate Head Quarters
Commercially Important Person
Central Industrial Security Force
Communication Navigation and Surveillance
Corporate Planning and Management System
Central Radio Stores Depot
Door Frame Metal Detector
Distance Measuring Equipment
Duty Technical Officer
Doppler Very High Frequency Omni Range
Equipment Mechanic
Electronic private automatic Branch Exchange
Expected Time of Arrival
Expected Time of Departure
Flight Inspection Unit
GPS aided GEO Augmented Navigation
Hand Held Metal Detector
International Civil Aviation Organization
Identity
Motor Transport
Notice to Airmen
Officer-in-Charge
Public Address System
Photo Identity Card
Remote Control Unit
Regional Executive Director
Regional Head Quarters
Senior Manager
Special Maintenance Unit
Universal Coordinated Time
Very Important Person
Page 7 of 162
Section 4.0
Classification of CNS facilities
Name of the Equipment
Make
COMMUNICATION EQUIPMNET
QTY
FREQ
Date of
Installation/
POWER Commission Remarks
VHF AM Sets
OTE
DT-100
ECIL/PAE
5325
6
8
Transmitters
ECIL/1500
4
PAE T6
OTE
DR-100
7
6
118.1
123.9
132.3
50W
121.5
120.4
133.65
126.6
50W
27-07-04
RCU J Controller
OTE…..1
ECIL….2
118.1
121.9
123.9
All
118.1
123.9
132.3
50W
50W
17-11-97
Used as Main & Stand by
14-01-80 (2) for following
30-01-85 (2) frequencies:
118.1 Mhz TWR
121.5 Mhz Emergency
121.9 Mhz SMC
27-07-04
120.4 Mhz APP
123.9 Mhz Area (North)
& RCAG ,Bhopal.
133.65 Mhz Radar South
17-11-97
provided with ER VHF
Ant. W.E.F. 5-11-12.
126.6 Mhz DATIS
132.3 Mhz Radar
14-01-80 (2)
30-01-85(2)
ECIL/PAE
5100
8
121.5
120.4
133.65
126.6
50W
ECIL/1201
4
50W
PAE T6
DXAM
7000
7
2
118.1
121.9
123.9
All
*
25W
19-05-06
Tune-able
10W
09-05-07
25W
08-07-99
NA
31-07-01
Receivers
1
VHF AM Transreceivers
Jotron**
TR-710
VHF AM portable R/T
SETS
PAI 5610
2
DVTR
Marathon
2
32 Chnl
* Pre-tuned on selected
frequencies viz
118.1,121.5,121.9, 122.7,
123.9 & 132.3 Mhz
Used in TWR, Fire
Control Room and Fire
Control Tower
**Transferred to Gondia
Airport.
TWR, 1 u/s
Page 8 of 162
AMSS
ECIL
1
NA
NA
October -04
FDPS
ECIL
1
NA
NA
07-01-06
Page 9 of 162
LAN/WAN
AFTN
a) X.25 64 Kbps Circuits
1. Mumbai
2. Delhi
3. Kolkata
4. Hyderabad
5. HIAL
6. Varanasi
7. Bhopal RWS
8. Jabalpur RWS
9. Gondia RWS
b) HOT Lines with
• Gondia
•
Ahemedabad &
• Raipur
EPABX
Mobile Radio (FM)
Communication
(BASE STATION)
Mobile Radio (FM)
Communication
(Hand Held Sets)
HCL
1
NA
NA
14-11-05
44 Computers are in this
Network
06-09-06
07-09-06
08-09-06
08-09-06
16-03-08
15.04.08
03.11.08
06-02-12
15-03-12
CORAL
1
MOTOROLA
GM950 i
GM300
2
1
SIMCO
PRN8019M
1
PUNWIRE
Vertex
VX2200 DO/25
5
MOTOROLA
GP328
GP300
14
5
NA
161.825
Mhz
166.525
Mhz
NA
10W
1
KENWOOD
TK2107
Vertex
VX2200 DO/25
6
6
28-05-03
03-02-98
11-05-99
1
SIMCO
(LP1510SA9)
22-04-2004
31-10-90
161.825
Mhz
166.525
Mhz
28-05-03
03-02-98
256 lines EPABX
One ISDN card added in
April 09.
Control Tower - 1
Eqpt Room OTB- 1
VCCS Room - 2
CISF Control Room-2
CISF Hostel
-1
Follow Me Jeep -1
Spare -2
CISF - 39
AAI - 25
11-05-99
28-09-05
18-09-06
32
NAVIGATION EQUIPMENT
DVOR (NNP)
HP DME(NNP)
(Collocated with VOR)
GCEL-755
GCEL-752
NORMACLOCALIZER (INGR)
3513
NORMACGLIDE PATH
3533
LP DME (INGR Collocated Thales 415
1
1
1
1
1
112.7
100W
Mhz.
1161
1 KW
1098 Mhz
110.3
15W
Mhz
335.0
5W
Mhz
1001
100W
May 1997
May 1991
Feb 1993
Feb 1993
13-09-07
Page 10 of 162
with GP)
Middle Marker
1064 Mhz
NEERA
1
75 Mhz
5W
June 1980
Outer Marker
ASII 1130
1
75 Mhz
5W
April 2004
Locator Outer
SAC 100
1
217 Khz
100W
June 2004
Withdrawn 18 Dec. 08.
Page 11 of 162
SECURITY EQUIPMENTS (Operation & Maintenance with MIPL)
X-BIS SYSTEM
Departure Lounge
100100V
International Arrival Area
100 100 V
Security Hold Area
6040i
Cargo complex (OTB)
145180V
Explosive Trace Detectors
Smith 500 DT
Heimann
(Ger)
-do-
1
16-08-05
1
19-10-05
Used by Custom deptt.
(returnable)
Heimann
(Ger)
Heimann
(Ger)
1
2
29-11-01
09-09-08
Domestic SHA.
Domestic & Intl SHA.
1
07-05-03
Smith
IONSCAN
500 DT
4
17-09-07
Installed at SHA (2),
Cargo (1) & Departure
lounge (1).
4 laptops received P/O
eqpt. for configuration.
Metor-200
4
07-08-02
10-09-03
18-11-08
17-09-07
06-11-08
27-10-08
Received 2 DFMD from
Keshod & Porbandar in
Nov.08.
14-04-08
DFMD
CEIA
FIDS
IDDS-Solaris
2
1
1
PA system
Bosch
1
NGOSCO
1
SURVEILLANCE
MSSR
1030/
1090
MHz
April 2004
1 KW
10-12-2010
PSAT
INSTALLATION
INRES
INSTALLATION
AUTOMATION
System
ADS-B
14-11-2010
INDRA
1
COMSOFT 1
-
-
20-01-2012
12-10-2012
(SAT)
Yet to be
commissioned
Page 12 of 162
Layout of various CNS/ATM facilities at Nagpur Airport
AUTOMATION/ ADS-B
Note: FDPS/ASSS and FDPS W/S is not in operation.
Legend:
OTB:
Building
NTB:
Building
R/RX:
RADAR:
Old
Terminal
New
Terminal
Remote Receiver
Radar Complex
Page 13 of 162
Section 5.0
Support and Maintenance of CNS Facilities
NAME
OF
THE
FACILITY/
LOCATION
Detail
ACs
Equipment
room OTB
Qty-2/LG 1.5
TON,
Qty-2
Split AC 1.5
TON Bluestar
Central AC
Equipment
room VCCS
of
Type/Nos
/capacity
UPS
Type/
Make
Aqua
power
Rating
------2 KVA
Battery back up
Date
of
Procur
ement
3/200
4
No
Voltage
/VA rating
2
8
Remarks
12V,100 AH
12 V,17AH
Date of
last
Procur
ement
1/2008
6/2008
For VHF only
For FDPS Fiber optic RACK
-------3 KVA
2007
4
8
12V,100 AH
12V,26AH
1/2008
3/2007
For VHF only
Qty 2 nos for Drake VCS (main/standby)
Uniline
Leibert
Aqua
power
APC
1 KVA
2 KVA
2KVA
2002
2008
2004
4
8
8
12v,26 AH
12V/ 17AH
12V,17AH
4/2009
7/2008
6/2008
For DVTR USE (2 nos)(parallel use)
For DATIS Servers.
For DVTR USE (spare).
800VA
2006
1
12V,7.5AH
6/2006
For TED Drake VCS Tower position
Microtek
800VA
2008
8
12V/ 17AH
7/2008
DATIS client at ATC tower.
Aqua
power
Pillar
2KVA
2004
8
12V,17AH
6/2008
For FDPS WorkStation at TOWER
10KVA
2002
32
12V,17 AH
4/2009
For FDPS use (QTY 2 nos) (main/standby)
A-Z
Electronics
TOWER
FDPS
room
Qty 3 Split
AC 1.5 ton
LG
Server
Central
AC,
Qty-2
Split
AC 1.5 TON
Blue star,
Qty 1 Split
AC 1.5 ton
LG
Page 14 of 162
NAME
OF
THE
FACILITY/
LOCATION
Detail
ACs
Type/Nos
/capacity
Type/
Make
Rating
MSSR
Central AC,
Qty 1 Split
AC 1.5 ton
Blue star,
Qty 3 Split
AC 1.5 ton
LG
Central AC,
Qty 2 Split
AC 1.5 ton
Blue star,
Qty 1 Split
AC 1.5 ton
Blue star LG
Qty 1 Split
AC 0.5 ton
Blue star
Radar Central
AC
-do-
Pillar
MSSR RDPS
CPME room at
R/RX
AMSS
DSCN
LAN/WAN
EPABX
of
Qty 2 Split
AC 1.5 Ton
LG make
Qty 2 Split
AC 1.5 Ton
LG/Voltas
UPS
Battery back up
Remarks
No
Voltage
/VA rating
Date
of
last
Procure-ment
50KVA
Date
of
Procur
ement
2000
32
12V,65AH
Battery Bank
I –June-2011
II- 24 Aug’2012
Qty 2 nos UPS(main/standby)
pillar
10KVA
2000
32
12V,17AH
4/2009
Qty 2 nos UPS(main/standby)
Numeric
Power
1KVA
UPS
2
12V,26AH
2-09-11
Vinitic
Alpha
Power
One
APC
APC
Others
5 KVA
20
12V,26 AH
9/2007
16
12V/7Ah
16
63
21
1
12V 12 AH
12V 7.2 AH
12V,7.2 AH
48V 42 AH
3 KVA
3 KVA
1,.5KVA
June
2001
2004
Qty 2 nos UPS(main/standby)
Qty.2 UPS (Main/StdBy)
Feb 08
Feb 08
Apr 09
2012
25 nos 1 KVA, 17 nos.500VA
2 nos. 1 KVA, 11 nos..6 KVA
Page 15 of 162
NAME OF THE
FACILITY/
LOCATION
Detail
ACs
of
Type/Nos
/capacity
XBIS MACHINE
(i) 100 100 V
(ii) 100 100V
(iii)
6040
i
(iv)
6040
i
(iii) 145180V
ILS GP/
LP DME
Centralized
AC
No AC
FIDS
Qty
2
LG
Split 1.5 Ton
2 LG Cabinet
3 Ton
Qty
2
LG
Split 1.5 Ton
2 LG Cabinet
3 Ton
1 Voltas 1.5
Ton Split
2 LG Split 1.5
Ton
1 LG Cabinet
3 Ton
Central AC
PA System
Central AC
ILS/LLZ
OM/LO
DVOR/DME (HP)
UPS
Battery back up
Remarks
Type/
Make
Rating
Date
of
Procurem
ent
No
Voltage
/VA rating
Date
of
last
Procurement
ARMO
ARMO
ARMO
APC
AZ
Electron.
APC
1 KVA
1 KVA
1KVA
1 KVA
2 KVA
08-10-07
28-12-07
02-04-08
09-09-08
11-04-06
10
08
10
2
08
12V/7AH
12V/7AH
17V/7AH
12V/7.2 AH
12V/18AH
08-10-07
28-12-07
02-04-08
09-09-08
11-04-06
2 KVA
08-04-07
04
12V/17AH
05-10-12
APC
1 KVA
09-04-07
04
12V/12 AH
02-09-11
ARMO
2 KVA
14-01-08
08
12V/13.5AH
05-10-12
Leibert
Leibert
10 KVA
20 KVA
27-10-08
27-10-08
26
26
12V/24Ah
12V/40Ah
Leibert
10 KW
26.09.08
20
12V/17Ah
5 KVA
12V/42Ah
12V/42Ah
Departure Area
Arrival area for custom
SHA
Qty 2. SHA (Domest & Intl)
Cargo hall
11-02-11
Page 16 of 162
NAME OF THE
FACILITY/
LOCATION
Detail
ACs
of
UPS
Type/Nos
/capacity
Type/
Make
Automation
System
Qty-7
Bluestar Split
AC 1.5 Ton
Numeric
Power
Automation
System
Qty-2
Bluestar Split
AC 1.5 Ton
ADS-B System
Qty-3
Bluestar Split
AC 1.5 Ton
Rating
Battery back up
Remarks
Date
of
Procurem
ent
No
Voltage
/VA rating
15KVA
18-042011
24
12V, 42AH
Date
of
last
Procurement
18-04-2011
Numeric
Power
5 KVA
23-062011
12
12V, 28 AH
23-06-2011
Qty-Two UPS (Main/ Standby)
EATON
E-Series
DX
1
KVA
(0.8
KW)
12-102012
3
12V, 26 AH
12-10-2012
Qty-Two UPS (Main/ Standby) with
External SAHARA STS 3KVA Static Switch
Qty-Four UPS in Parallel Redundant
Configuration at Automation UPS Room
(ATS complex)
Page 17 of 162
DEDICATED LINES:
TYPE
NUMBER/ID
BETWEEN
Value
added
hotline
-do-
0712-2288029
0771-2418159
ACC
Nagpur
ATC Raipur
07-01-04
0712-2282633
07182-283164
0712-2290062
0712-2554044
Circuit ID
712#002/11/712#
-do-
ATC Gondia
12-06-07
-do-
ATC
Nagpur
ATC
Nagpur
City
Police
Control Room
City
Fire
Brigade
05-04-05
-do-
1983
-do-
Bhopal RWS
03.11.08
Data/Voice
Varanasi
15.04.08
Data/Voice
Hyderabad
08.09.06
Data/Voice
Shamshabad
22.03.08
Data/Voice
Delhi
06.09.06
Data/Voice
Booked at Mumbai
end.
Booked at Kolkata
end.
Booked at Jabalpur
end.
Nagpur
Airport
Nagpur
Airport
Nagpur
Airport
Nagpur
Airport
Nagpur
Airport
Nagpur
Airport
Nagpur
Airport
Nagpur
Airport
Mumbai
06.09.06
Data/Voice
Kolkata
07.09.06
Data/Voice
Jabalpur
06.02.12
Data
Booked
end.
Nagpur
Airport
Gondia
15.03.12
Data
Nagpur
Airport
Bhopal RCAG
03.10.08
RCAG
voice
Nagpur
Airport
Bhopal
Airport
5-May-2011
RADAR
DATA
for
Automation
Nagpur
Airport
Shamshabad
28-May-2011
RADAR
DATA for
Automation
Nagpur
Airport
Jharsugda
05-Jul-2012
RADAR
DATA for
Automation
-doPrivate
Wire (NE
Line)
64 Kbps
MLLN
64 Kbps
MLLN
64 Kbps
MLLN
64 Kbps
MLLN
64 Kbps
MLLN
64 Kbps
MLLN
64 Kbps
MLLN
64
Kbps
MLLN
64
Kbps
MLLN
64 Kbps
4W voice
2
Mbps
MLLN
712/*623/16/755#
712/*574/16/542#
Booked
at
Hyderabad end.
Booked
at
Hyderabad end.
Booked at Delhi end.
at
Nagpur
712/*483/16/755#
712/01123/18/755
Ckt ID: 1062085
2 Mbps
MLLN
712/01124/18/40
DATE
OF PRESENT
COMMISSI.
USE
Ckt ID: 115714
128
Kbps
Booked at Kolkata
end
Ckt ID: 1013073
For ATS
coordination
Page 18 of 162
List of Direct Telephone & Mobile Numbers of Executives at Nagpur Airport
S.No
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
26
27
28
29
30
31
32
33
34
35
CNS
No
431
506
751
2108
780
2185
1686
849
531
786
852
960
829
969
4023
1312
1086
1522
1682
1607
1644
1640
1745
1781
2316
3082
2242
2449
2305
2351
2452
3042
4058
3506
Name
P.P.Nikhar
S.J.Patil
A.K.Das-II
P.Hore
G.K.Majumder
D.Chatterjee
R.S.Gaikwad
P.L.Meshram
R.K.Gupta
P.Bhowmik
A.B.Agarkar
Sanjay De
Sameer Mukherjee
S.R.Menghre
A.D.Baxi
D.Pal
B.P.Sinha
Shafique Shah
Nilmohan Singha
K B M Latha
S.S.Maggirwar
S.S.Prajapati
S.V.Vijayabhaskar
S.K.Dhurwe
A.R. Subramanian
V.K .Netam
S.P.Ghosh
Sateesh P
S.K.Dutta
Debashish Roy
O Biju
Binod Kumar
M.K.Sahu
H.P,Kujur
Desg
DGM (Com)
AGM(Com)
AGM(Com)
AGM(C-O)
AGM(C-T)
AGM(C-O)
AGM(C-E)
AGM(C-T)
AGM(Com)
AGM(C-T)
AGM(C-T)
AGM(C-T)
AGM(C-T
AGM(C-T)
AGM(C-T)
SM(C-T)
MGR(C-T)
MGR(C-E)
MGR(C-T)
SM(C-E)
SM(C-E)
SM(C-E)
AM(C-E)
MGR(C-E)
MGR(C-O)
AM(C-E)
MGR(C-O)
MGR(C-O)
SM(C-O)
MGR(C-O)
MGR(C-O)
MGR(C-E)
MGR(C-E)
AM(C-E)
RES TEL
2246113
2240300
2285200
9432201687
2285923
2220119
8806742472
9595050340
2285071
2287395
2701024
MOBILE
8793405878
9503056959
9970653780
9967542836
9730015212
9860560298
9527453858
9422464263
9423684830
9422101995
9422802694
9860396097
8275044415
9423402479
9987511294
8446118662
9421804707
9890714304
9422454422
9970186084
9403209748
9422106967
9766648559
9422464524
9158991410
9604671814
9545769256
9645702246
9923804137
9890728020
9403930819
9422458645
9404384338
9822578335
Page 19 of 162
36
37
38
39
40
41
42
43
44
45
3415
3540
3544
3332
3609
3384
3391
3520
3373
3364
Sashikanth K M
Shailesh K.Thakur
B Arun Nayak
Umesh C Tiwari
Bharat V Sonkar
A.K.Arora
D.K.Pandey
Hem Singh Parihar
Vedavrath L
Vidya.B.Pathak
JEE(E)
JEE(E)
JEE(E)
JEE(E)
JEE(E)
JEE(E)
JEE(E)
JEE(E)
JEE(E)
JEE(E)
9762027834
9762027812
9595842329
8055512064
7588690534
08989770068
9503267214
8237721404
9561463322
8149650057
Page 20 of 162
Details of telephone/fax/mobile/e-mail of officers at Nagpur Airport
STD Code: 0712 EPABX No: 2288020
S.No
Name S/Shri
Designation/Unit
Office
1 A.K.Verma
Airport Director
2807501
Telephone Numbers
Residence
FAX
Mobile
E-Mail
6450835 2288007 9823078942 [email protected]
HOD's
3 P.P.Nikhar
4 S.C.Haldar
DGM (COM)
Joint GM (ATC)
S&P
2807515
2807502
-
2295986 9422824117
5 R.Ghatol
DGM(ATC)Trg
2807526
-
9765405408
6 Mondal
SM Engg (Civil)
2807509
7 S K Burewar
SM Engg (Electl)
2807510
8 J.M.Tawar
M (Fin)
2807519
9 Swati Sahu
M (P&A)
10 P.Kasti
SM (Fire)
2807507
3202158
2807520
11
SM (E&M)
2807525
Airport Terminal Manager
12 Sh.Sorte
Asst GM(Term.M) 2807508
2288007 8793405878 [email protected]
2288014
-
2807510 9822386220
8600149188
-
9960526665 [email protected]
2291181
9860168394
[email protected]
Page 21 of 162
Details of telephone/fax/mobile/e-mail of officers at Nagpur Airport
STD Code: 0712 EPABX No: 2288020,2807500
S.No
Name S/Shri
Designation/Unit
Office
Telephone Numbers
Residence
FAX
Mobile
E-Mail
ATC Units
13
14
15
WSO
Area Control
Centre
TWR
16
AHCR
17
18
19
Communication Units
SSO
DCO
AMSS
2807505
3202151
2807506
2807503
2807504
2807527
2040404
2295056 9823035731 [email protected]
9823035732
2283424
2807518
2807517
2282935 9890107672 [email protected]
[email protected]
2288011
2288011
Airport Security Unit
20
21
22
CASO (DC CISF)
DY CASO (AC
CISF)
Control Room
CISF
2807521
2807530 2288028 9423565182 [email protected]
2282948
2242056
2807524
Page 22 of 162
Section 6.0
Technical Description of Various CNS Facilities
SYSTEM TYPE
TYPICAL USER
IMPACT ON
COMMUNICATION
Controlling flow of
operation
1. COMMUNICATION SYSTEM
VHFSystem
provides
voice
communication between ATC TOWER and
PILOT
AAI-ATC/Airlines
2. NAV-AIDS- Provides direction /bearing
to aircraft with respect to Airport /distance
of Aircraft from Airport and accurate and
precise guidance to a landing aircraft.
Airlines
Aid to airlines
controlling flow of
operation
3.SECURITY EQUIPMENT For frisking the
passengers and screening the baggage.
Airline Agency/CISF
Controlling security
and safety of airport
4.PA System/ FIDS Installed in public utility
area for information related to the flights to
public at Airport
Airline Agency
Controlling passenger
movement
5.DSCN Dedicated Satellite Communication
Network. Provides both way communications.
AAI
Controlling flow of
operation
6.RWS – Data CkT Through RWS ckt AFTN
messages can be sent or received from any
Airport of the World via VANP AMSS/AFTN
network to/from Bhopal . It is part of AFTN.
SPEECH CKT (Through VOIP) – Provides Voice
communication between TWR/ACC of Nagpur &
others
AAI/ATC/COM CENTER
Controlling flow of
operation
7.DVTR Installed to record all the important
communications.
AAI
Log of voice
communication
controlling operation.
8.LAN/WAN It is also part of Comm. System.
Help’s People work together by sharing
information in many digital forms.
senior AAI/CISF
executives at Nagpur
access to shared
information
9.AUTOMATION SYSTEM It is a part of
surveillance system which helps Air traffic
controllers to control the traffic in an efficient
manner
10.MSSR It is a surveillance system which
presents the air traffic as a blip on a display
ATC
Smooth flow and
better management of
air traffic
ATC
Controlling and
Management of air
traffic
ATC
Controlling and
Management of air
traffic
11. ADS-B It is a surveillance system which
presents the air traffic as a blip on a display
with Aircraft information
Page 23 of 162
Section 6.1
Functional Specification
Facilities: - DVOR/DME/LLZ/GP/LP DME/VHF
S.No
Data
Manufacturer
Document
Tolerance
ICAO
Specification
Tolerance
Station Data
DVOR
1
O/P Power
50-100w
2
30Hz
variable
Carrier
Frequency
TQ
30Hz Mod
9960
Hz
Mod
9960
Hz
deviation
Frequency 30
Hz
112-118MHZ
+/-1%
30%
30%
3
4
5
6
>50%
Nominal
30Hz
of
70 W
0.002%
112-118MHZ
0.002%
112.7 MHz
+/-2%
+/-2%
30%
30%
+/-2%
+/-2%
31.6%
31.40%
+/-0.6
16
+/-1%
16.3
DME (HP)
1
2
3
4
5
6
7
8
Operating
Frequency
System
delay
Pulse
Pair
Specing(Tx)
Power O/P
S.G.
Spacing
S.G.PRF
EFFICIENCY
S.G. Level
9601215MHZ
50 us
0.001%
+/-0.5 us
50us
12 us
+ /-2%
12us
595-944w
12us
100PPS
0.001%
>50%
12us
+/-10
100PPS
>70%
1.0
+/0.5us
+/-0.25
+/-0.25
+/-10
+/-0.1
1161 MHz(Tx)
1098 MHz (Rx)
50.03us
12.02us
770 W
12.02
106
98%
0.97
LLZ
1
108-112MHz
2
Frequency
CL
CLR
3
150Hz
150Hz
4
90Hz
90Hz
5
DDM
6
SDM
7
Difference
freq
CL=0%
DS=15.5%
NF=0%
CLR=25%
CL=40%
DS=40%
NF=40%
CLR=40%
8khz
108-112MHz
+/0.002%
+/0.002%
+/0.001%
108-112MHz
+/-.001%
90Hz
108-112MHz
150Hz
CL=0%
DS=15.5%
NF=0%
CLR=25%
CL=40%
DS=40%
NF=40%
CLR=40%
5-14KHz
+/0.002%
+/0.002%
+/2.5%
+/2.5%
110.303 Mhz
110.2920 Mhz
150.003/150.002 hz
90.002/90.006 hz
CL=0.14 /0.04 %
DS=17.26/16.93 %
NF= -0.02/-0.57 %
CLR=25.42/25.62%
CL=40.56/39.96 %
DS=41.44/41.03 %
NF 40.52/39.84 %
CLR 40.9/41.15 %
9.7 khz
Page 24 of 162
S.No
Data
Manufacturer
Document
Tolerance
ICAO
Specification
Tolerance
328.6335.4MHz
328.6335.4MHz
150Hz
+/0.002%
+/0.002%
0.001%
328.6335.4MHz
150Hz
0.001%
90Hz
CL=0%
DS=17.5%
Nf=0%
CLR=40%
CL=80%
DS=80%
NF80%
CLR=80%
0.001%
90Hz
CL=0%
DS=17.5%
Nf=0%
CLR=40%
CL=80%
DS=80%
NF80%
CLR=80%
4-32KHz
0.001%
9601215MHZ
50 us
0.001%
Station Data
GP
1
2
Frequency
CL
CLR
3
150Hz
4
5
90Hz
DDM
6
SDM
7
Difference
freq
DME (LP)
Operating
Frequency
System
delay
Pulse
Pair
Special
Power O/P
S.G.
Spacing
S.G.PRF
EFFICIENCY
1
2
3
4
5
6
7
12 us
+/-10
335.002 Mhz
-
0.001%
+/-0.25
us
+ /-2%
100w
12us
100PPS
+/0.002%
150.0060/150.0091
2 Hz
90.0031/90.0070 Hz
CL=-0.67/0.17
DS=16.53/16.15
NF=2.13/2.79
CLR= CL=80.62/80.19
DS=79.77/80.51
NF=80.49/80.94
CLR=
16.6 KHz
1001MHz(Tx)
1064MHz (Rx)
50 micro second
11.98
100w
12us
+/-20w
+/-0.25
100PPS
>70%
+/-10
,,
,,
100 W
12us
100PPS
98 %
VHF
Transmitter:
1
2
3
1
2
Frequency
Band
POWER
108-156MHZ
MOD%
Receiver:
Frequency
Band
Receiver
Sensitivity
95%Max
+ /-PPM
50W
CW(+47dBm)
108-156MHz
5-20
dB(S+N)/N
with
–107
dBm 30% AM
+ /- 1PPM
117.975-136 MHZ
+ /-002%
With in the defined
operational
coverage(F.S.75uv
per meter
85%
At least 85%
180 To 156 MHz
+ /-0.005%
15dB(S+N)/N with
50% AM,20
uv
/Meter
45.5 dBm
90%
-115dBm
Page 25 of 162
Section 6.2
Safe Operation
System efficiency and reliability depends upon the system maintenance,
environment and climatic conditions by adopting following systematic methods
and proven techniques. This would enhance the life of system and continue to
function with optimum efficiency and maximum reliability. This maintenance is
classified as corrective maintenance, periodic maintenance and trouble shooting.
A. CORRECTIVE MAINTENANCE
There are many corrective steps taken at regular intervals to avoid any
deterioration of a system. The first step in corrective maintenance is inspection
of the equipment with power off. The main elements of inspection are:
1) Cleanliness of equipment.
2) Building condition, leakage etc.
3) Electrical Connections (Cables & plug in modules)
4) Mechanical joints and linkages including switches.
5) Wiring condition, water vapor, heat or extreme cold can affect internal
and external wiring. Look for frayed, broken or damaged wiring.
6) Recent modifications.
7) Corrosion, broken, burnt or missing parts.
8) Build up of dirt, moisture, insects etc.
9) Improper lubrication of moving parts.
After finding and correcting the trouble, appropriate adjustment procedures are
followed. Maintenance records are to be kept and as much data as possible
recorded to assist in future repairs. List of normal indications and what was done
to correct the fault.
Records are maintained to include actual measurements taken before and after
the repair to accumulate work history. Any malfunctioning noted during
maintenance is corrected and if required components replaced.
PERIODIC MAINTENANCE
System efficiency and performance is monitored by checking significant signals
and voltages at various levels in the system.
The purpose of daily and weekly recordings of signal parameters and voltages is
done so as to compare these to previous records in order to reduce the
parameter deviation from normal or other irregularities of the system
performance.
The purpose of monthly and quarterly inspection is to
Ensure that transmitters and associated systems are calibrated and optimally
aligned.
Page 26 of 162
Ensure that monitors are calibrated and alarm limits are correct and
operating as per specifications.
To check warning and alarm systems are working properly as per ICAO
specifications.
PERFORMANCE CHECKS
Check operational status. In most cases, the information available at the test
jacks (signals and voltages) is sufficient to determine if a module is functioning
correctly.
Check manual/automatic shut down and restart.
Voltage and current checks.
Voltages and currents are checked to verify that transmitters and associated
equipment are operating properly. Low voltage readings can cause premature
failures as well as changes in transmitter frequency and power out put. Higher
than normal voltage can also cause rapid equipment failures. High current
readings indicate areas that require immediate action.
i)
Check transfer system A to B and B to A (Main to Stand By & Vice Versa)
ii)
Verify monitor alarm points. Monitor alarm points are set initially during
installation. This check is to verify that the initial alarm limits have not
changed.
iii)
Measure and record all modulation percentages and observe side band
and carrier wave forms.
iv)
Check field monitor levels.
v)
Measure and record system operating frequency.
vi)
Check RF amplifier output power and gain.
vii)
Measure and record antenna feed cable VSWR
viii)
Perform check and calibration of built in test equipment
ix)
Transmission line insulation resistance.
Page 27 of 162
TROUBLE SHOOTING
General guidelines to locate and trouble shoot a fault is given below:-
i)
Check for signs of excessive heat.
ii)
Verify that all integrated circuits are seated firmly in their sockets and
that there are no bent pins.
iii)
Check that printed circuit board edge connectors are clean and seated
fully.
iv)
Check the ribbon cable connectors.
v)
Check the power supplies. Power supplies are a very common source of
problems. Low voltage/excessive ripple make it appear that an IC is bad.
a)
Measure the power supply voltages and verify that they are with in
specifications.
b)
vi)
Using an oscilloscope verifies that the power supply output are not
excessively noisy.
Using an oscilloscope and other test equipments verify that clock signals,
input signals and control signals are present and correct in shape and
level. By doing these procedures isolate the faulty units, sub unit and
come to pin point the fault to the component level.
Page 28 of 162
Section 6.3
CORRECTIVE & PREVENTIVE MAINTANENCE
Inspection / Maintenance of ILS :
Daily / Weekly / Monthly & Quarterly maintenance is carried out to detect any parameter
deviation for normal or any other irregularity of the system. The maintenance is being carried
out as per schedule given by AAI Headquarters.
a. Daily Inspection / Maintenance:- Mains supply / Battery Voltage
Room Temperature, environment, cleanliness, Mast light, critical area
etc;
b. Weekly Inspection / Maintenance : - Transmitters Power readings
/ Voltage current readings, signal parameters. Field readings (LLz) etc;
c. Monthly Inspection / Maintenance : - Alarm limits readings, lamp
tests, Ident check, Alarm shut-off checks, etc;
d. Quarterly Inspection / Maintenance :(i)
Equipment software monitor Alarm checks, Monitor Alarm delay
checks, Battery operations maintenance etc;
(ii)
Antenna :- Periodically checking of the condition of all connectors
(Antenna distribution units and monitor combiner unit) and the
antenna mast structure.
Fault Log Books:- for Localizer/ Glide Path / DME are maintained
for future reference.
Flight inspection : - Flight Inspection constitutes In-flight evaluation
sampling of the radiated signals. The signal in-space is evaluated under
same conditions as they are presented to another Aircraft using the ILS.
The purpose is to confirm the correctness of the settings of essential
signal-in-space parameters, determine the operational safety &
acceptability of ILS.
Periodicity of Flight Inspection for Normarc ILS is 150 + 30 days. Last
calibration Inspection for Nagpur Airport was done
ILS
Date of last Air calibration:Next Calibration Due On:-
19-12-12
19-06-13
GLIDE ANGLE(In Degree)
TX-1: 3.01
Tx-II :3.00
LOCALIZER COUSE WIDTH
(In Degree)
TX-1: 3.40
Tx-II : 3.41
Page 29 of 162
VOR
I.
Test requirements: -
Periodic performance tests to
a) Determine if facility is operating in accordance with established
criteria.
b) Equipment adjustment when it deviates from set value.
c) Periodic check for normal functioning of electronic sub units.
II.
Measure the frequency of radiation to check any deviation from the
tolerance limit.
III.
Air calibration carried out once in 720 days + 30days and necessary
adjustment done in ground equipment to maintain the parameters
of
sub-carrier and bearings as per ICAO specifications. Readings
are noted to maintain it as a standard reading.
IV.
Maintenance records for the following are maintained.
i)
ii)
Daily meter readings of AC/ DC voltages, signal levels, Mod %
levels, Temperature, cleanliness and physical verification of
moving parts other electronic sub units and monitoring of
radiated signals variations if any.
Apart from these Weekly, Monthly, Half yearly checks are
carried out as per laid down procedures.
DISTANCE MEASURING EQUIPMENT ( Co-located with VOR)
1. Facility test and maintenance is carried on daily, Weekly, Monthly,
bi-monthly and yearly basis for
Frequency of radiated signal by using frequency counter
Pulse shape
Pulse spacing
Peak power
System delay
Pulse repetition frequency
Receiver frequency stability
Receiver sensitivity
Decoder
Reply efficiency
Identification.
II.
So that distance information provided is accurate and as per ICAO
specifications. Also adjustment is carried out with test equipment
to achieve it within the tolerance limit.
III.
Once in 24 months DME is air calibrated by doing proper
adjustments in Ground Equipment in co-ordination with calibration
aircraft and all readings are noted to maintain it till next air
calibration.
Page 30 of 162
IV.
DVOR/HP-DME
Date of last Air calibration:Next Calibration Due On:-
19.12.12
19.12.14
1
EQUIPMENT ROOM
VHF Transmitters
VHF Receivers
DVTR
UTC Clock System
Walkie-Talkie Sets
Remote Control Units for Nav-aids.
Various facilities installed in Anti-hijack Control Room.
DRAKE VCS System
Inspection/ Maintenance of various equipments and registers maintained.
1. Daily VHF communication monitoring register
2. Digital Voice Tape-Recorder DAT recording time In/ Out register.
3. Monthly inspection/ maintenance register of VHF AM Txs/ Rxs, Tape
recorder.
4. Fault Log books VHF Txs/ Rxs etc;
Security Equipments
X-Ray Baggage Inspection System
Hand Held Metal Detectors
Door Frame Metal Detectors
Explosive Trace Detector – Smith IONSCAN500DT
Facility Operation and Maintenance Plan
The operation and maintenance phase starts after the users have
accepted the new system these phase can be divided into two activities.
1) On going operation and support
2) Maintenance
Unlike the other steps in the lifecycle these steps continues
throughout the systems useful life.
Ongoing operation and support is the process of ensuring that the
technical system components continue to operate correctly and that the
users use it effectively. This responsibility is with technical staff taking
care of machine and computer operation and a Member of the user
organization ensuring that the users understand the system and use it
effectively.
Page 31 of 162
Maintenance is the process of modifying the information system
over time. As users gain experience with system, they discover its
shortcoming and usually suggest improvements, important shortcoming
must be corrected if users continue using an information system
enthusiastically.
Page 32 of 162
Section 7.0
Facility Operation and Maintenance Plan
The operation and maintenance phase starts after the users have accepted the
new system these phase can be divided into two activities.
1) On going operation and support
2) Maintenance
Unlike the others steps in the lifecycle these steps continues throughout the
systems useful life. Ongoing operation and support is the process of ensuring
that the technical system components continue to operate correctly and that the
users use it effectively these responsibility is with technical staff taking care of
machine and computer operation and a Member of the user organization
ensuring that the users understand the system and the use it effectively.
Page 33 of 162
PROCESS FLOWCHART
(a) Maintenance
Daily/Weekly/Monthly/Six monthly
Maintenance schedules
Clean equipment to remove dust /dirt and
physically check all connections & cables .
Measure voltage/current /parameter as per
Daily/Weekly/Monthly/Six monthly
Maintenance schedules
Observe for any deviation from prescribed value
Any
deviation?
No
Yes
Follow the laid down procedure by the
manufacturer to correct the deviation and
record the action taken in the fault log book.
Record the readings.
End.
Page 34 of 162
(b) Break down maintenance
Complaint received / fault monitored
Check all panel indications / meter
readings / parameters of the equipment
and analyze the fault.
With the help of test equipment carry out
measurements to isolate the faulty
module / component / part
Determine the spares required to rectify the fault.
Yesparts/
Spare
module avbl.?
No
Follow the laid down procedure to change the
module /component as per the manufacturer to
correct the fault and make any adjustment, if
required, to keep the parameters within the
tolerances.
Record the action
taken in the fault
log book and m/o
for operation.
C
Check the faulty
part/module
Locally
repairable
?
NO
YES
B
A
Page 35 of 162
C
B
Send the faulty
module to
SMU/RHQ/CHQ
A
Purchase spares
required as per laid
down procedures
Do follow up action to
get the repaired/
spare module
Demand spares
from CHQ / RHQ
Do follow up action
to get the spares
Receive Spares
Receive Spare /
Repaired Module
Σ
Page 36 of 162
PROCESS FOR TAKING NOTAM (NOTICE TO AIRMEN)
Getting request from ATS units to take
NOTAM. Action / cancellation of NOTAM.
No
All relevant
data available?
Seek clarification.
Yes
Forward to MUMBAI NOTAM office through
AFTN for taking NOTAM action.
After receiving NOTAM from MUMBAI NOTAM
office verify the same and keep record.
Page 37 of 162
Section 7.1
Test Equipments
Sl. No
Make
A
1
2
3
4
Digital Multimeter
5
Philips
KUSUM
HIL (Qty 2)
Philips
Mastek (Qty 2)
Model
OM2525/I
MECO 603
2605
PM2525
7
Samsung (Qty 2)
Protek (qty 2)
BQ789
90239
201108
BQ665
Serviceability of
TE
Unit in which used Date of calibration
Svcbl
Svcbl
Svcbl
Svcbl
Svcbl
U/s
DVOR/DME
DVOR/DME
VCCS
GP
GP
MM
Security
LLZ
OM
Svcbl
MSSR
MAS830L
M890G
6
Ser.No.
22020929584
8900G
506
8010A
1000219
1000220
5715109
SVCBL
8
Fluke (Qty-02)
B
1
2
3
4
E
1
2
3
4
5
F
1
2
G
1
5800030
2.05.12
25.04.12
25.04.12
25.04.12
25.04.12
Analog Multimeter
Motwani
C
1
2
3
4
5
D
8010
Nav Aids
20.11.08
22.09.11
20.11.08
24.09.10
8x MK III
Not in use
Svcbl
LLZ
Svcbl
U/s
Svcbl
DVOR/DME
Radar
GP
21.09.10
MSSR
27.04.12
Oscilloscope
BPL/DT031500
Dual Channel 50 Mhz
Philips/PM
3262/90
Dual Channel 100 Mhz
BPL/DT031002
Dual Channel 100 Mhz
B8L2814
1354
B9E5606
Dual Channel 275 Mhz HP/1725A
2616A07589 U/s
Dual Channel 100 Mhz Tektronics/TDS220 BC63538 Svcbl
Signal Generator
Audio SG 100Hz to
001
100Khz
VASAWI VF 013
Svcbl
2015AP9123
HP 0.8 to 2.4 Ghz
8614A
Svcbl
Pulse Generator 10 Hz- Systron Donner
432
10 Mhz
1110D
U/s
Pulse Generator0.5Hz- Systron Donner
79006-6
50 Mhz
110D
Svcbl
Frquency Counter
0110704
Leader 250 Mhz
LDC823A
Svcbl
PM6669/
BQ701
Philips (Qty 2)
411
BQ690
Svcbl
Philips 80 Mhz to 1
BQ778
Ghz
PM6625
Svcbl
APLAB 1.3 GHz
393/7
Universal
Aplab1129
Svcbl
Microwave Pulse
00180
Counter
EIP/585
Svcbl
Power Meter
EPM Series 100Khz to
GB395109193
110 Ghz
HP/ E4419B
313A
Svcbl
RF Peak Power Meter
829
0.3 -40 Ghz
BOONTON/ 4400A
Svcbl
Soldering/DeSoldering Station
Soldering /Desoldering
0399
station
Weller 4624
Svcbl
VCCS
MSSR
MSSR
DVOR/DME
DVOR/DME
VCCS
LLZ
DVOR/DME
30.04.12
23.09.10
24.03.06
25.03.06
20.09.10
26.04.12
26.04.12
30.04.12
MSSR
MSSR
MSSR
25.04.12
24.09.10
MSSR
Page 38 of 162
Sl.No.
Sl. No Make
H
1
I
1
2
J
1
2
K
1
L
1
2
M
1
2
3
4
5
6
7
Model
Radio Comm Test Set
Test Set Marconi
2955A
132240/ 033
Serviceability Unit in which
Of TE
used
Svcbl
VCCS
Svcbl
Svcbl
LLZ
GP
Svcbl
Svcbl
GP
LLZ
Date of calibration
27.04.12
RF MILLIVOLTMETER
Motwane
Khatau
REM700
Mv19c
0021189
8703M025
FIELD TEST SETS
ILS Filed Test Set
ILS Filed Test Set
SPECTRUM
ANALYZER
NM3710
NM3710
HP 100Hz to 1.5 Ghz
NETWORK
ANALYZER/ Vector
Voltmeter
S-Parameter 30 khz3Ghz
Vector Voltmeter (100
KHz -1 GHz)
PEAK POWER
ANALYZER
SENSOR
SENSOR
Peak Power Meter
Peak Power Meter
SENSOR
SENSOR
Peak Power Meter
8568B
491
463
2542A12346260/A02573
MSSR
US39171593
HP/8753ES
Svcbl
MSSR
Svcbl
MSSR
Svcbl
U/s
Svcbl
Svcbl
Svcbl
Svcbl
Svcbl
DVOR/DME
GP
DVOR/DME
GP
MSSR
MSSR
MSSR
30.04.12
01.05.12
25.04.12
20.11.08
3905U04871
HP8508A
84811A
84811A
HP 8900D
HP 8900C
HP 4412A
HP 8481B
HP 435B
2551A02615
2552A48448
2131A0094D
2131A01630
23.09.10
20.11.08
23.09.10
20.11.08
20.11.08
Page 39 of 162
Page 40 of 162
Section 7.2
SMU Details:
Special Maintenance Units(SMU) are established at specified airports for component level
repair of un-serviceable modules for various CNS/ATM facilities as per the details given
below: S.No
1
2
3
Equipment/Facility
DME
(GCEL) 751/752/753
DVOR (GCEL) 755
4
5
6
7
8
9
10
DVOR(ASII) 1150
CVOR (ASII) 1150
DME(ASII) 1118/1119
ILS(ASII)
XBIS (ECIL)
Radar (NGOSCO)
ILS(NORMAC)
Display Monitor (Sony)
DVTR (Marathon Pro)
11
12
13
VHF TX/RX(OTE)
NDB(SAC 100/400)
XBIS (Heiman)
SMU location
Kolkata
Contact Nos
033-25118240
E-mail
[email protected]
Ahmedabad
079-22861665
22885888 (FAX)
[email protected]
IGI Delhi
[email protected]
Hyderabad
[email protected]
Chennai
044-22561515
Extn SMU
[email protected]
Mumbai
022-26828100
Extn SMU
[email protected]
CMC Delhi
011-24691283
[email protected]
As per N&S directorate/CHQ letter no. CMC/General/02 dated 10-01-2007, all the
coordination among CMC, SMUs and station for repair and return of un-serviceable/faulty
modules/cards has to be made by e-mail as per the detail given below: -
a) Faulty module/Card to be dispatched to the respective SMU and intimation to be
given by e-mail as per Performa CMC-01 and a brief of fault report.
b) SMU on receipt of faulty Card/module shall raise Site Anomaly Report (SAR) and
acknowledge receipt to the station in the Performa CMC-02
c) After repair of card and testing by a competent officer of SMU for proper functioning
the same shall be dispatched to the station and intimation given as per Performa
CMC-03
d) On receipt of the card station will test in the circuit and intimate SMU in the Performa
CMC-04 to close the SAR. However, if the card/module is not OK, the same will be
returned to SMU with same SAR and as per the above procedure.
Page 41 of 162
Section 7.3
Interruption to Service
Most of the CNS/ATM facilities provided are having standby unit in place which takes
over in case of un-serviceability of main unit. However, in case if there is total failure
of service, all concerned are immediately intimated on phone and NOTAM action is
initiated by issuing a service message to VABBYNYX for taking appropriate NOTAM
action. NOTAM is either time bound, permanent or with an estimated time. If the
facility is restored before expiry of estimated time, NOTAMC is taken and if the
facility is estimated to be U/S beyond estimated time, NOTAMR is taken indicating
revised estimated time for restoration of the facility.
Page 42 of 162
Doc. no:
DM CNS CS-05
Department Manual
Rev. no. : 06
NAGPUR
DEPARTMENT STRUCTURE
AIRPORT DIRECTOR
OFFICER - IN-CHARGE
DGM (CNS)
AGM (COM-E)
(MSSR)
SM / M-1
AGM (Com-T)
(SEC.EQPT)
AM-1
AGM (COM-T)
AGM (COM-T)
(VCS & R/RX)
(Nav-Aids)
VOR/DME
SM-1
ILS
AGM/SM/
M-2
SHIFT
SM / M /JE -4
AGMR (COM-O)
(AMSS / IT/ LINES/ EPABX)
M-1
SS-1
SHIFT
SM / M /JE -4
AGM (CNS)
Automation/ADS-B
M / AM-2
Mgr (C-E)-1
SA (E)-1
SHIFT
DCO (BRIEFING)
SM / M /JE -4
SHIFT
BOOKING
SM / M /JE -4
Reviewed By:
M-1
CNS STORES
Approved By:
Effective date:
Page 43 of 162
SHIFT
AMSS SUP
SM / M-4
SHIFT
SSO
SM / M-4
SHIFT
AGM/SM / M /JE -4
Combined with RADAR
AGM
GAGAN INRES
SM (C-E)
Jr.Ex
Doc. no:
DM CNS CS-05
Department Manual
Rev. no. : 06
NAGPUR
BRIEF DESCRIPTION / ROLE OF CNS DEPARTMENT
1.To provide uninterrupted services of Communication, Navigation, Surveillance and Automation (CNS/ATM) facilities for the smooth and
safe movement of aircraft (over flying, departing & landing) in accordance with ICAO standards and recommended practices.
2. To maintain Security Equipments namely X-Ray Baggage systems (XBIS), Hand Held Metal Detectors (HHMD) and Door Frame Metal
Detectors (DFMD).
3. To provide and maintain inter-unit communication facility i.e. Electronic Private Automatic Exchange Board (EPABX)
4. To maintain the Computer systems including peripherals like printers, UPS etc. provided in various sections connected as standalone as
well as on Local Area Network (LAN).
5. To maintain the passenger facilitation systems like Public Address (PA) system, Car Hailing System and Flight Information Display System
(FIDS).
6. To maintain and operate Automatic Message Switching system (AMSS) used for exchange of messages over Aeronautical Fixed
Telecommunication Network (AFTN).
7. To provide Communication Briefing to pilots by compiling NOTAM received from other International NOF.
8.To maintain and operate Fax machine.
9. To co-ordinate with telephone service providers for provision and smooth functioning of auto telephones/ hotlines/ data circuits.
Reviewed By:
Approved By:
Effective date:
Page 44 of 162
Doc. no:
DM CNS CS-05
Department Manual
Rev. no. : 06
NAGPUR
Section 8.1
HR Details of executives
Proficient and Trained Man Power posted at Nagpur
S.No
CNS No
1
527
P.P.Nikhar
506
S.J.Patil
751
A.K. Das-II
2
3
Name
Designation
DOB
Date of
joining station
DGM (Com)
14-May-74
24-Aug-11
01-Nov-69
25-Jun-09
1a(i)(ii)(iii), 1b(i), 2(i)(ii)(iii), 3(ii).
30-Apr-53
20-Jul-07
2(ii)
30-Jul-59
30-Jun-08
AGM(Com)
AGM(C-T)
Prof held
Remarks
NIL
Drawing GP
4
780
G.K.Majumder
AGM(C-T)
5
829
S.K.Mukhopadhyay
AGM(C-T)
02-Sep-60
01-Aug-11
1(a)(i)(ii),2(i)(ii)(iii),3(i)(ii)(a)
801
A.K.Naskar
AGM(C-T)
4-Mar-60
24-Jun-04
1(a)(i), 1(a)(ii), 1(a)(iii), 2(ii)
7
800
P.L.Meshram
21April 58
27-07-12
1(a)(i)(ii)(iii),2(i)(ii)(iii)
8
531
R.K.Gupta
18-Feb-75
27-Aug-10
1a(i)(ii)(iii),1c, 2(i)(ii)(iii),3(ii)(a),5(a),1(b)(i) ,1
(b)(ii)
786
Prabir Bhowmik
13-Jan-59
10-Aug-09
1a(i)(ii)(iii), 2(i)(ii)(iii), 3(i)(ii).
6
9
Reviewed By:
AGM(C-T)
AGM(Com)
AGM(C-T)
2(ii)
Approved By:
Effective date:
Page 45 of 162
Drawing
Maintenance
allowance
Doc. no:
DM CNS CS-05
Department Manual
Rev. no. : 06
NAGPUR
10
852
A.B.Agarkar
AGM(C-T)
11
2108
P.Hore
AGM(C-O)
12
2185
D Chatterjee
AGM(C-O)
13
960
Sanjay De
14
969
15
16
23-Jan-61
17-Jun-10
1(a)(i)(ii)(iii),2(i)(ii)(iii),3(ii)(a)
15-Aug-11
4(i)(ii).1(c),1(b)(ii)
10-Jan-55
16-Aug-11
Nil
AGM(C-T)
02-Sept-61
24-Jul-06
Nil
S.R.Menghre
SM(C-T)
03-Aug-60
11-Aug-06
1(a)(ii), 2(i), 2(ii), 2(iii)
1086
B.P.Sinha
SM (C-T)
30-Aug-60
18-Aug-05
1(a)(i),1(a)(ii),2(i),2(ii)
973
A.D.Baxi
SM(C-T)
17-Dec-60
29-Jul-12
2(ii),3(i)
Drawing GP
Drawing GP
Drawing GP
1522
Md. Shafiq Shah
MGR(C-E)
01-Feb-69
20-Jun-09
1(a)(i) (ii),1(a)(iii),1(b)(i)(ii),1(c), 2(i),2(ii),2(iii),3(ii),
5(a)
1682
Nilmohan Singha
AGM (C-T)
06-Oct-60
11-Jun-08
1a(i)(ii)(iii), 2(i)(ii)(iii).
1607
K.B.M.Latha
AGM (C-E)
01-Jul-65
20-Aug-10
1(a)(i)(ii)(iii),2(i)(ii)(iii),3(ii)(a)
20
1745
S.V.Vijaybhaskar
AM(C-E)
28-Apr-71
04-Sep-08
1c.
Drawing GP
21
1781
S.K.Dhurwe
12-Jul-77
31-May-08
1a(ii)
Drawing GP
22
1686
R.S.Gaikwad
12-Jan-68
19-Aug-12
1a(i)(ii)(iii),1b(i)(ii),1c,2(ii)(iii),5a
17
18
19
Reviewed By:
MGR(C-E)
AGM(C-E)
Approved By:
Effective date:
Page 46 of 162
Doc. no:
DM CNS CS-05
Department Manual
Rev. no. : 06
NAGPUR
23
2316
A.Rama
Subramaniam
2242
S.P.Ghosh
2449
Satheesh P
2305
18-Jan-62
09-Aug-10
1(b)(ii), 1(c),4(i),4(ii),5(a)
20-May-61
03-Apr-09
1b(ii), 1c, 4(i)4(ii), 5a.
MGR(C-O)
08-May-64
19-Jun-09
1(c), 5a.
S.K.Dutta
SM(C-O)
03-Aug-06
03-Aug-06
1(b)(ii), i( c), 4(i), 4(ii), 5 (a)
1312
D.Pal
SM(C-T)
28-Jul-62
24-Aug-12
1(a)(i)(ii)(iii),2(i)(ii)(iii),
28
2351
Debashish Roy
SM(C-O)
28-Jan-61
18-Jun-04
1(b)(ii), 1(c),4(i),4(ii),5(a)
29
1644
S S Maggirwar
AGM(C-E)
12-Jul-70
11-Oct-11
1(a)(ii)(iii)2(i)(ii)(iii)
30
1640
S.S.Prajapati
AGM(C-E)
17-Nov-70
Sep-10
2(iii)
2452
Biju O.
MGR(C-O)
28-May-65
19-Jun-09
1(b)(ii),1(c), 5(a).
3042
Binod Kumar
MGR(C-E)
13-Mar-05
09-Aug-07
1a(ii), 2(I)(ii).3ii(a)
Drawing GP
3506
Henry Pratap Kujur
AM(C-E)
13-Jul-72
31-Jul-09
1a(i)
Drawing GP
3082
V K Netam
AM(C-E)
10-Mar-74
01-Aug-11
1a(ii)(iii)
Drawing GP
4058
M.K.Sahu
M(C-E)
07-Jan-80
06-Jun-11
3(ii)(a)
Drawing GP
24
25
26
27
31
32
33
34
35
AGM(C-O)
SM(C-O)
Reviewed By:
Approved By:
Effective date:
Page 47 of 162
Drawing GP
Doc. no:
DM CNS CS-05
Department Manual
Rev. no. : 06
NAGPUR
36
37
3415
Shashi Kanth K.M
JEE(E)
05-Aug-87
20-Feb-11
1a(ii)
3540
S.K.Thakur
JEE(E)
30-Jun-80
21-Feb-11
Nil
3544
B Arun Nayak
JEE(E)
13-Aug-85
13-Mar-11
Nil
38
Drawing GP
Drawing GP
Drawing GP
39
Drawing GP
3332
Umesh C Tiwari
JEE(E)
15-Nov-85
13-Mar-11
Nil
3609
Bharat V Sonkar
JEE(E)
20-Jul-84
13-Mar-11
Nil
3384
A.K.Arora
JEE(E)
10-Jan-86
11-Apr-11
Nil
Drawing GP
3391
D.K.Pandey
JEE(E)
01-May-87
11-Apr-11
Nil
Drawing GP
3520
H.S.Parihar
JEE(E)
12 –jul-83
28-Mar-11
Nil
Drawing GP
3364
V B Pathak
JEE(E)
10-Dec-86
04-Apr-11
Nil
Drawing GP
40
Drawing GP
41
42
43
44
Reviewed By:
Approved By:
Effective date:
Page 48 of 162
Doc. no:
DM CNS CS-05
Department Manual
Rev. no. : 06
NAGPUR
Legend used in Prof held column:
1(a)(i)
1(a)(ii)
1(a)(iii)
1(b)(i)
1(b)(ii)
HF/NDB Maintenance
VHF/SSS/VCCS/Recorder/DATIS Maintenance
XBIS/DFMD/HHMD Maintenance
AMSS Maintenance
ASBS
3(i)
3(ii)(a)
3(ii)(b)
3(ii)( c)
4(i)
1( c)
2(i)
2(ii)
AMSS (OPS)
VOR or DVOR Maintenance
DME LP or HP Maintenance
4(ii)
4(iii)
5(a)
2(iii)
5(b)(i)(ii)
5(b)(i)(iii)
5(b)(ii)
6(a)
6(b)
6( c)
ILS maintenance
5(b)(i)(i)
Automatic data processing (both H/W and S/W) at ACC stations
Automatic data processing (both H/W and S/W) at other airports
ADS/CPDLC
SAT/NAV Maintenance
SATCOM Maintenance
ATN G/G Maint & Ops
GP
Reviewed By:
Approved By:
Effective date:
Page 49 of 162
Primary Radar Maintenance
MSSR Maintenance
SMR
ASMGCS
HFRT MWARA
HFRT RDARA at International
Airports
HFRT RDARA at domestic airports
AMSS System Administration
Automatic data processing (both
H/W and S/W) at Delhi/Mumbai
GENERAL PROFICIENCY
Doc. no:
DM CNS CS-05
Department Manual
Rev. no. : 06
NAGPUR
RESPONSIBILITY AND FUNCTIONS
OFFICER IN CHARGE (CNS):Overall In-charge of all CNS/ATM facilities operating at the station with the available manpower and resources.
Assitt.General Manager (Unit in-charges)
•
Responsible for smooth and uninterrupted operation of their respective units.
•
Responsible for sending various technical returns as required by RHQ/CHQ.
•
Projecting requirement of spares for the equipment/systems for their respective unit for procurement action either through
local purchase or through RHQ/CHQ.
•
To ensure execution of prescribed preventive maintenance schedules i.e. daily, weekly, monthly, quarterly, half yearly and
annual as applicable and make necessary entries in the records .
•
Execution of special maintenance schedule i.e. pre flight checks and pre-monsoon checks.
•
Carrying out corrective maintenance in case of breakdown of facility
•
Verification of logbook, maintenance schedules entries.
•
Providing ground maintenance support for periodical flight calibrations wherever applicable.
Reviewed By:
Approved By:
Effective date:
Page 50 of 162
Doc. no:
DM CNS CS-05
Department Manual
Rev. no. : 06
NAGPUR
•
Handling all correspondence related to the respective unit with internal as well as external agencies.
•
Providing feedback to OIC, CNS about the functioning of unit concerned.
•
Monitoring system performance with the help of various test equipment's, and carry out necessary adjustments in various
parameters as and when required..
•
Ensuring proper environmental conditions at the site where facility is installed. These conditions include temperature, dust
free environment, humidity, sensitive and critical area around the facility.
•
Coordination with Civil / Electrical Engineering wing for maintaining proper environmental conditions.
•
Write off action of the obsolete and beyond economic repair equipment/ parts.
•
Any other duty assigned by OIC, CNS or unit in-charge.
Asstt.General Manager (COM-OPS) /AMSS /EPABX/ LINES (MAINT)
•
Responsible for all matters pertaining to Communication operations.
•
Liaison with Telephone service providers in ensuring efficiency of telephones / hotlines and AFTN circuits.
•
Ensure timely payment of Telephone bills.
•
Preparation & onward transmission of monthly, quarterly and annual communication returns or as required by RHQ / CHQ.
•
Responsible for maintenance and upkeep of EPABX/AMSS/LINES/
•
Liaison with WPC for correctness of frequencies as prescribed by ICAO.
•
Any other duty assigned by OIC, CNS or unit in-charge.
Reviewed By:
Approved By:
Effective date:
Page 51 of 162
Doc. no:
DM CNS CS-05
Department Manual
Rev. no. : 06
NAGPUR
IT COORDINATOR
Responsible for maintenance and upkeep of various computers installed in different units and the LAN.
Liasion with IT directorate regarding availability of services on LAN/ WAN.
Shift Supervisory Officer –SSO (Equipment room)
•
Checking main/standby channels of CNS facilities.
•
Monitoring of status indicator of various facilities.
•
Monitoring of tape recorder. Changing of DAT /M.O Disk in the tape recorder as & when required and maintain appropriate
records .
•
To report breakdown/un-serviceability of facilities to unit in-charge and inform DCO/ AMSS Supervisor for initiating NOTAM
action.
•
On restoration of the facility to report serviceability of the facility to unit in-charge and inform DCO/ AMSS Supervisor for
appropriate NOTAM action.
•
Forwarding of daily U/S report of CNS/ATM facilities to GM CNS WR, Mumbai by FAX.
•
Attending of faults during shift and maintenance of logbook for activities during the shift.
•
Marking of attendance for the officers/staff reporting in shift duty.
Reviewed By:
Approved By:
Effective date:
Page 52 of 162
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Rev. no. : 06
NAGPUR
•
Incase of any absenteeism, making necessary arrangement to cover the shortage in the shift.
•
Any other duty assigned by OIC, CNS or unit in-charge.
Reviewed By:
Approved By:
Effective date:
Page 53 of 162
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Rev. no. : 06
NAGPUR
Maintenance Team
•
Execution of prescribed preventive maintenance schedules i.e. daily, weekly, monthly, quarterly, half yearly as applicable.
Maintenance team also makes necessary entries in the records.
•
Execution of special maintenance schedule i.e. pre flight checks and pre-monsoon checks.
•
Monitoring system performance with the help of various test equipment, and carry out necessary adjustments in various
parameters as and when required..
•
Attending the breakdown of the facility.
•
Ensuring proper environmental conditions at the site where facility is installed. These conditions include temperature, dust free
environment and humidity.
•
Coordination with Civil/Electrical Engineering wing for maintaining proper environmental conditions.
•
Taking backup of the data at regular intervals and preserving the same for a period as decided by ICAO/CHQ.(specially for
Radar/AMSS).
•
Maintenance of PC and accessories belonging to AAI, installed at various locations of airport.
•
Any other duty assigned by OIC, CNS or unit in-charge.
•
Reviewed By:
Approved By:
Effective date:
Page 54 of 162
Doc. no:
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Department Manual
Rev. no. : 06
NAGPUR
Shift Duty Officer (Eqpt room/Nav aids/ Automation/Radars/ADS-B)
•
Monitoring of functioning of various CNS/ATM facilities with the help of Local/Remote Control/Status Terminals.
•
Attends the various complaints about the working of CNS/ATM facilities received from ATC and other users e.g. Airlines.
•
Attending the minor nature of faults/breakdown.
•
Daily checks of various facilities installed in Anti-Hijacking Room. Checking the recording of various channels on Tape Recorder.
•
Checking the various security equipment installed in terminal building.
•
Bring into the notice of OIC (CNS) about the unserviceability of any CNS/ATM Facility.
•
Making log entries of all the activities being performed.
•
Assist unit in charge’s in execution of prescribed preventive / corrective maintenance schedules i.e. daily, weekly, monthly,
quarterly, half yearly as applicable and make necessary entries in the records.
•
Any other duty assigned by OIC, CNS or unit in-charge.
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Duty Communication Officer (Briefing)
•
Responsible for smooth operation of AMSS system.
•
Ensuring the delivery of messages to various destinations within prescribed time limit.
•
Initiating NOTAM action for various facilities as received from various ATS / CNS units.
•
Responsible for updating and validation of record of all NOTAM related to all airports and destination routes.
•
Updating all NOTAM received from International NOF.
•
To update various documents like AERADIO, AFS manual etc.
•
Provides necessary Communication Briefing to the Pilots and other aircrew.
•
Booking of telephone related faults with Telephone service providers and subsequent persuasion by coordinating with
Telephone service providers.
•
Ensure restoration of drop circuits viz. Met Office, Tower etc Incase of unserviceability of above circuits and ensure delivery of the
messages manually to avoid delay to different units till restoration of the circuit.
•
Any other duty assigned by OIC, CNS or unit in-charge.
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AMSS Supervisor
•
Responsible for smooth operation of AMSS system.
•
Ensures delivery of messages to various destinations with in prescribed time limits.
•
Attending to various services messages and queues wherever manual intervention is required.
•
Taking daily backup of data on tape Cartridge.
•
Booking of line related faults with respective Telecom Service Provider and subsequent coordination and persuasion till the line is
restored.
•
Informs the AMSS maintenance team about any problem in the AMSS system.
•
Forwarding of daily channel outage report
•
Coordinates with other stations connected with AMSS/Dial Up/ Fax channels for smooth exchange of AFTN messages.
•
Any other duty assigned by OIC, CNS or unit in-charge.
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AMSS Booking
•
Responsible for feeding all messages coming from various ATS agencies, other Administrative Units into AMSS system for
onward transmission to various destinations and disseminates all incoming messages to various ATS units as required.
•
Supervises all functions related to incoming and outgoing Fax messages.
•
Assist Duty Communication Officer (Briefing)/ AMSS (SUP) in discharge of Communication duty effectively.
•
To discharge the duties of DCO (Briefing) In his absence.
•
Incase of unserviceability of drop circuits at various units, assists DCO/ AMSS Sup to get the fault attended for early restoration of
the circuit.
•
Send missing NOTAM services to all the International NOTAM Office.
•
Any other duty assigned by OIC, CNS or unit in-charge.
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Section 9.0
Status of CNS Projects
Sl
No
1
Equipment
/Model
ADS-B
2
INRES
GAGAN
Purpose
CNSWR
No
Status
Remarks
It is a surveillance system which presents
the air traffic as a blip on a display with
Aircraft information
SAT Completed on 1210-12
Commissioning awaited
It is a GPS Aided GEO StationaryAugmented
Navigation to achieve a smooth transition to
satellite based navigation and seamless air
traffic management across the continents. It is
designed to provide the addl accuracy,
availability & integrity necessary to enable
users to rely on GPS for all phases of flight.
DGCA inspection for
certification carried out
on19-03-13
Commissioning awaited
3
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