S19793
S19804
S19811
S19817
S19819
S19821
BOEING
AIRPLANE FLIGHT MANUAL
NORMAL PROCEDURES
I N E R T I A L
R E F E R E N C E
S Y S T E M
Two Inertial Reference Systems (IRS) in conjunction with two Flight
Management Computer Systems (FMCS) meet the Inertial Navigation
System requirements of FAA Advisory Circular 25-4 as the sole means
of navigation for flights of up to 18 hours duration.
OR
Two Inertial Reference Systems (IRS) in conjunction with one Flight
Management Computer connected to either two Hybrid Multi-purpose
Control Display Units (HMCDU) or two Multi-purpose Control Display
Units (MCDU), meet the Inertial Navigation System requirements of
FAA Advisory Circular 25-4 as the sole means of navigation for
flights of up to 18 hours duration.
A normal 10-minute ground alignment of the IRS has been demonstrated
to be satisfactory between 70.2 degrees North and 70.2 degrees South
latitudes. An extended 17-minute ground alignment is required
between 70.2 degrees and 78.25 degrees North and South latitudes.
In the NAV (navigation) mode the IRS will provide valid magnetic
heading and track between 73 degrees North and 60 degrees South
latitudes.*
Insure IRS alignment is complete and all IRUs are in the NAV mode
before the airplane is moved.
When an IRU is in the ATT (Attitude) mode magnetic heading will
drift after initialization in a manner similar to a directional gyro
and requires crew monitoring and periodic manual updates to ensure
adequate accuracy.
* When Boeing Service Bulletin 767-34-0206, 767-34-0555 or
production equivalent is incorporated, the northern boundary is
extended to 82 degrees north latitude, except from 80 degrees west
to 130 degrees west longitude the boundary is restricted to 70
degrees north latitude. The southern boundary is extended to 82
degrees south latitude, except from 120 degrees east to 160
degrees east longitude the boundary is restricted to 60 degrees
south latitude.
FAA APPROVED 04-03-08
D6T11321
Code
0001
Section 3.1
Page 13
BOEING
AIRPLANE FLIGHT MANUAL
NORMAL PROCEDURES
F L I G H T
(F M C S)
M A N A G E M E N T
C O M P U T E R
S Y S T E M
AIRPLANES WITHOUT FANS 1 FMC INSTALLED
The Flight Management Computer System meets the requirements of
AC 90-45A for an area navigation system when operated with radio
updating. When operated in this configuration, the FMCS may be used
for enroute and terminal area operations and RNAV approaches with
the MAP display of the EHSI. In addition, the FMCS may be used in
conjunction with the MAP display as a supplement to primary
navigation means when conducting other types of approaches. The
FMCS will provide navigation, guidance, and map display between 87
degrees North and 87 degrees South latitudes.
The FMCS may be used for vertical navigation (VNAV) for enroute and
terminal area operation. VNAV operations must be predicated on use
of the primary altimeter system for altitude determination.
When conducting RNAV approaches not obtained from the navigation
data base, the navaid associated with the approach should be
manually tuned and monitored to verify RNAV waypoint passage with
RDMI radial and DME information.
AIRPLANES WITH FANS 1 FMC INSTALLED
The following FMCS demonstrations do not constitute operational
approval.
The Flight Management Computer System (FMCS) meets the requirements
of FAA Advisory Circular (AC) 25-15 for long range navigation with
the following equipment operational at dispatch:
One Flight Management computer (FMC); two Hybrid Multipurpose
Control Display Units (HMCDUs) or Multipurpose Control Display Units
(MCDU); and two Inertial Reference Units (IRU) in NAV mode.
To meet the requirements for RNAV operations (FAA AC 20-130A, JAA
AMJ 20X2) the following equipment must be operational at dispatch
(unless other appropriate procedures are used):
One FMC, one CDU, one VHF Omni-directional Radio (VOR), one IRU in
NAV mode, and either one Distance Measuring Equipment (DME) or
Global Positioning System (GPS) (if installed).
The FMCS has been shown to meet the requirements of AC 20-130A for a
multi-sensor area navigation system when operated with radio or
Global Position System (GPS) updating. When operated in this
configuration, the FMCS may be used for enroute, terminal area
operations and instrument approach navigation (excluding ILS, LOC,
LOC-BC, LDA, SDF, and MLS approach procedures). The FMCS may be
used to fly a RNAV approach procedure that overlays an ILS, LOC,
LOC-BC, LDA, SDF, or MLS approach procedure when the localizer
facility is inoperative subject to appropriate operational
considerations, procedures, constraints, and authorizations.
The FMCS will provide navigation, guidance, and map display between
87 degrees North and 87 degrees South latitude.
FAA APPROVED 03-10-04
D6T11321
Code
FANS
Section 3.1
Page 14
BOEING
AIRPLANE FLIGHT MANUAL
NORMAL PROCEDURES
F L I G H T
M A N A G E M E N T
(F M C S)
(Con’t.)
C O M P U T E R
S Y S T E M
AIRPLANES WITH FANS 1 FMC INSTALLED (Con’t.)
The FMCS has been shown to meet the requirements of AC 20-129 for vertical
navigation (VNAV) for enroute, terminal area operations, and instrument
approaches (excluding ILS G/S approach procedures). The FMCS may be used
to fly a VNAV approach procedure that overlays an ILS glideslope approach
procedure when the glideslope facility is inoperative subject to
appropriate operational considerations, procedures, constraints, and
authorizations.
GPS updating must be disabled for approach operations when operating
outside the United States National Airspace, if the FMC database and
charts are not referenced to WGS-84 reference datum, unless other
appropriate procedures are used.
When using the FMCS without GPS updating to conduct a terminal area
procedure or an instrument approach, active DME/DME or VOR/DME updating as
appropriate for the procedure being flown should be checked to ensure
correct navigation. For an instrument approach, this check should be done
no later than the final approach fix. As an alternative, it is acceptable
to check for correct navigation using VOR or DME data relative to a map.
For flight operations without Required Navigation Performance (RNP), the
FMCS has been shown to meet the requirements of AC 20-130A for a multisensor area navigation system when operated with radio or Global
Positioning System (GPS) updating. When operated in this configuration,
the FMCS may be used for enroute, terminal area operations, and instrument
approach navigation (excluding ILS, LOC, LOC-BC, LDA, SDF, and MLS
approach procedures). The FMCS may be used to fly a RNAV approach
procedure that overlays an ILS, LOC, LOC-BC, LDA, SDF, or MLS
approach procedure when the localizer facility is inoperative
subject to appropriate operational considerations, procedures,
constraints, and authorizations.
FAA APPROVED 06-02-09
D6T11321
Code
FANS
Section 3.1
Page 14A
BOEING
AIRPLANE FLIGHT MANUAL
NORMAL PROCEDURES
F L I G H T
M A N A G E M E N T
(F M C S) (Con’t.)
C O M P U T E R
S Y S T E M
REQUIRED NAVIGATIONAL PERFORMANCE (RNP) OPERATIONS
For RNP operations, the demonstrated RNP capabilities are as follows:
Demonstrated RNP Flight Capability Versus Mode Of Flight
Mode of Flight
*
FMC GPS
Operational
FMC GPS Not
Operational
LNAV with Autopilot Engaged
0.15 NM
0.13 NM*
0.28 NM
LNAV with Flight Director
0.28 NM
0.14 NM*
0.41 NM
0.28 NM*
Manual Control with MAP
display only
0.52 NM
0.81 NM*
1.16 NM
Applicable upon installation of Boeing Service Bulletin 767-34-0566 or
production equivalent.
The demonstrated RNP capabilities are predicated upon the assumptions,
definitions, requirements and analysis in Boeing Document D926T0120-1,
"757/767 FMCS RNP Navigation Capabilities, Generation 1," revision new or
later FAA approved version.
When using the MAP on the ND for manual flight for RNP operations of 2.00
nm or less down to the minimum demonstrated RNP, using a MAP scale of 10 nm
or less has been shown to assure acceptable path track performance.
RNP flight operations are subject to GPS satellite availability and/or
navaid coverage for the selected route.
The FMCS has been shown to meet the primary means RNP navigation with the
following equipment operational at dispatch: two FMCs; two CDUs, HMCDUs,
or MCDUs; two IRUs in NAV mode; and two sensors capable of complying with
the RNP.
FAA APPROVED 06-02-09
D6T11321
Code
FANS
Section 3.1
Page 14B