SB369E-108R1 SB369F-094R1 SERVICE BULLETIN MANDATORY MANDATORY DATE: 5 MAY 2015 PAGE 1 OF 10 MANDATORY * Supersedes Service Bulletins SB369E-108 and SB369F-094, dated 14 May 2013. Revised to change serial number effectivity in Paragraph 1.A., Aircraft Affected, to clarify the Warranty Policy, and to add the anti-collision light support assembly (Part No. 369D23660-7). AFT POSITION AND ANTI−COLLISION LIGHT MOUNTING INSPECTION, REPLACEMENT AND REPAIR 1. PLANNING INFORMATION A. Aircraft Affected: MD Helicopters Inc. (MDHI) Model 369E Helicopters, serial numbers 0608E thru 0621E and Model 369FF Helicopters, serial numbers 0186FF thru 0250FF. B. Assembly/Components Affected By This Notice: Position Light Mounting Bracket Assembly, Part No. (PN) 369D23662-11 Anti-Collision Light Support Assembly, PN 369D23660-5 C. Reason: The aft position light mounting bracket assembly is experiencing fatigue cracking due to increased weight of LED position light. The rivets of the anti-collision light support assembly may shear or pull through the mounting bracket and/or shear. Failure to comply with this bulletin may result in aft position light and anti-collision light LED assemblies breaking off of the aircraft resulting in damage to the tail rotor and possible loss of directional control. D. Description: Procedures in this Bulletin give owners and operators information to replace the aft position light mounting bracket assembly and inspect and repair the anti-collision light support assembly. E. Time of Compliance: Compliance with this bulletin must be completed within the next 10 flight hours after you get this bulletin. F. FAA Approval: The technical design aspects of this Bulletin are FAA Approved. G. Manpower: Compliance with this bulletin will be approximately one half (0.5) man-hours to inspect the aft anti-collision light support assembly on the aircraft. Three and one half (3.5) man-hours to replace the position light bracket assembly and two (2.0) man-hours to repair the anti-collision light support assembly. H. Interchangeability: None. Copyright 1999-2014 by MD Helicopters Inc. This document may be reproduced and distributed provided no fee is charged, the text is not modified, and this copyright notice is included. MANDATORY MANDATORY MANDATORY SB369E-108R1 SB369F-094R1 SERVICE BULLETIN DATE: 5 MAY 2015 PAGE 2 OF 10 MANDATORY MANDATORY MANDATORY I. Points of Contact: For further assistance, contact the Field Service Department at MDHI, Mesa, Arizona. Telephone 1-800-388-3378 or 480-346-6387. DATAFAX: 480-346-6813. J. Material/Part Availability: Contact MDHI Warranty Department to order required items REPLACEMENT PARTS/SUPPLIES Nomenclature Part No. Qty. Source Aft Position Light Mounting Bracket Assembly 369D23662−13 1 MDHI Anti−Collision Light Support Assembly 369D23660−7 1 MDHI Electrical Sleeving MIL-I-3190/6 RM011067 AR Commercial MDHI Knife Splice Terminal 32446 2 Commercial MDHI Permanent Ink Marker Sharpie 13601 or 32001 AR Commercial Primer MIL−P−85582, T1, C2 MIL−P−23377, T1, C AR Commercial Rivet, Blind NAS1919B04−04 4 MDHI Rivet, Solid Universal Head MS20470AD3−3−5 3 MDHI Rivet, Solid, Countersunk NAS1097AD4−3 10 MDHI Sealing Compound Pro−Seal 890 B2 AR Commercial K. Warranty Policy: MDHI will provide parts listed in table Replacement Parts/Supplies at NO cost. MDHI will also allow a Labor Credit as follows: S One half (0.5) man-hours for the initial on-aircraft inspection. S Three and one half (3.5) man-hours for the replacement of each installed position light mounting bracket assembly. S Two (2) man-hours for the repair of each installed anti-collision light assembly. Customers must submit a completed SOR in order to receive these parts per this Service Bulletin. Additional discrepancies found over and above the specified warranty coverage are the responsibility of the customer. L. Disposition of Parts Removed: N/A Copyright 1999-2014 by MD Helicopters Inc. This document may be reproduced and distributed provided no fee is charged, the text is not modified, and this copyright notice is included. MANDATORY MANDATORY MANDATORY SB369E-108R1 SB369F-094R1 SERVICE BULLETIN MANDATORY MANDATORY DATE: 5 MAY 2015 PAGE 3 OF 10 MANDATORY M. Weight and Balance: N/A N. Electrical Load Data: N/A O. Other Publications Affected: CSP-IPC-4, Illustrated Parts Catalog P. Reference Publications: Refer to the latest revision of this publication for procedures and additional information: CSP-HMI-2, Basic Handbook of Maintenance Instructions - Servicing and Maintenance CSP-HMI-3, Basic Handbook of Maintenance Instructions - Instruments Electrical Avionics 2. ACCOMPLISHMENT INSTRUCTIONS (Ref. Figure 1) A. [Part 1] Inspection (1). Remove the anti-collision light (ref. CSP-HMI-3, Section 96-40-00) and examine the anti-collision light support assembly for pulled through or sheared rivets. (a). Make sure the five rivets on each side of the anti-collision support light assembly are countersunk and flush. (b). If the rivets show signs of pulling through the support assembly or shearing, do Procedure C. (2). Do an inspection of anti-collision support light assembly, PN 369D23660-5, for the installation of ten MS20426AD3 rivets. (a). If there are MS20426AD3 rivets, do Procedure C. B. [Part 2] Replacement of Aft Position Light Mounting Bracket (1). If installed, remove horizontal stabilizer (ref. CSP-HMI-2, Section 53-50-10). (2). Remove aft position light. (a). Disconnect knife splice terminals. (b). Cut off knife splice terminals from wires. (c). Pull wires thru horizontal stabilizer. (d). Remove four screws on aft position light and retain all hardware and gaskets. (e). Remove aft position light from aft position light mounting bracket assembly. NOTE: For Step (3). thru Step (9). keep the trailing edge of the horizontal stabilizer facing down. (3). Remove aft position light mounting bracket assembly. (a). Remove four forward rivets by drilling the rivet head only with a #30 drill. Copyright 1999-2014 by MD Helicopters Inc. This document may be reproduced and distributed provided no fee is charged, the text is not modified, and this copyright notice is included. MANDATORY MANDATORY MANDATORY SB369E-108R1 SB369F-094R1 SERVICE BULLETIN DATE: 5 MAY 2015 PAGE 4 OF 10 MANDATORY MANDATORY MANDATORY HORIZONTAL STABILIZER 32446 KNIFE SPLICE TERMINAL (2 PL) 03-9250-0003 GASKET 03-9250-0002 RETAINER 91-0102-0513 SCREW (4 PL) VERTICAL STABILIZER NAS601-7 SCREW NAS1097AD4-3 COUNTERSUNK RIVET (10 PL) (5 EACH SIDE) 369D23660 ANTI-COLLISION LIGHT SUPPORT ASSEMBLY COUNTERSINK SIDE (REF) MS20470AD3-3-5 RIVET (3 PL) AN960-6 WASHER NAS1919B04-4 RIVET (4 PL) 369D23662-13 POSITION LIGHT BRACKET ASSEMBLY AN960-6 WASHER MS20470AD2 SELF-LOCKING NUT 88-827 Figure 1. LED Position and Anti-Collision Mount Assemblies Copyright 1999-2014 by MD Helicopters Inc. This document may be reproduced and distributed provided no fee is charged, the text is not modified, and this copyright notice is included. MANDATORY MANDATORY MANDATORY SB369E-108R1 SB369F-094R1 SERVICE BULLETIN MANDATORY MANDATORY DATE: 5 MAY 2015 PAGE 5 OF 10 MANDATORY (b). Use a small drift to tap the remaining part of rivet into the horizontal stabilizer. (c). Remove three trailing edge rivets by drilling the rivet head only with a # 40 drill. (d). Use a small drift to tap the remaining part of rivet out of the horizontal stabilizer. (e). Remove one screw, two washers and one self-locking nut. Retain hardware. (4). Inspect rivet holes for cracks and oversize. (a). If cracked or oversize contact MDHI Field Service. (5). Insert Pro-Seal 890 B-2 sealing compound (approximately ⅛ ounce) into open rivet holes to contain rivet pieces. (6). Shake horizontal stabilizer until rivet pieces are secured in sealing compound. (7). Apply corrosion protection to the rivet holes (ref. CSP-HMI-2, Chapter 20-40-00). (8). Use Cleco fasteners to hold position light mounting bracket 369D23662-13 in the correct position. (9). Wet install seven rivets with primer. (10). Install one screw, two washers and one self-locking nut. (11). Install aft position light: (a). Install aft position light into aft mounting bracket assembly. (b). Install gasket, retainer and four screws on aft position light. (c). Pull wiring thru horizontal stabilizer. (d). Install electrical sleeving over wires. (e). Install knife splice terminals onto wires. (f). Connect knife splice terminals. (g). Pull electrical sleeving over knife splice terminals and zip-ty ends. (12). Reinstall horizontal stabilizer (ref. CSP-HMI-2, Section 53-50-10). C. [Part 3] Repair of Anti-Collision Support Assembly (1). Remove anti-collision light (ref. CSP-HMI-3, Section 96-40-00). (2). Remove ten (10) rivets from anti-collision light support assembly with a # 40 drill. (3). Inspect rivet holes for cracks. (a). If there is a crack, contact MDHI Field Service. (4). Enlarge the rivet holes with a #30 drill. (5). Deburr the rivet holes. (6). Apply corrosion protection to the rivet holes (ref. CSP-HMI-2, Section 20-40-00). (7). Wet install ten (10) NAS1097AD4-3 rivets in anti-collision light support assembly with primer. Copyright 1999-2014 by MD Helicopters Inc. This document may be reproduced and distributed provided no fee is charged, the text is not modified, and this copyright notice is included. MANDATORY MANDATORY MANDATORY SB369E-108R1 SB369F-094R1 SERVICE BULLETIN DATE: 5 MAY 2015 PAGE 6 OF 10 MANDATORY MANDATORY MANDATORY (8). As necessary, do a touchup of the paint (ref. CSP-HMI-2, Section 20-30-00). (9). Identify the anti-collision light support assembly as 369D23660-7 with a permanent ink marker. (10). Install the anti-collision light on the support assembly with two (2) new self-locking nuts (ref. CSP-HMI-3, Section 96-40-00). D. Compliance Record (1). Record compliance to this Service Bulletin in the Compliance Record section of the Rotorcraft Log Book. (2). Complete the Bulletin Completed Record forms (attached) and FAX or e-mail them to the MHDI Field Service Department. Copyright 1999-2014 by MD Helicopters Inc. This document may be reproduced and distributed provided no fee is charged, the text is not modified, and this copyright notice is included. MANDATORY MANDATORY MANDATORY SB369E-108R1 SB369F-094R1 SERVICE BULLETIN MANDATORY DATE: 5 MAY 2015 PAGE 7 OF 10 MANDATORY MANDATORY Bulletin Completed Record [Part 1] SUPPORT ASSEMBLY, ANTI−COLLISION LIGHT INSPECTION MD Helicopters, Inc. Field Service Department 4555 E. McDowell Road Mesa, AZ 85215−9734 800−388−3378 Phone (U.S. and Canada) 480−346−6387 Phone (International) 480−346−6813 Fax FAX this form to MDHI (480) 346−6813 or E−mail to [email protected] Owner /Operator: Helicopter Serial No: Address: Helicopter Total Time: Date Complete: Location: Phone: E−mail: [Part 1 of 3] This bulletin is complete: (Signature) Part 3: Required: Y / N (circle one) (Print Name) (Title) Serial Number of tailboom: Comments: Copyright 1999-2014 by MD Helicopters Inc. This document may be reproduced and distributed provided no fee is charged, the text is not modified, and this copyright notice is included. MANDATORY MANDATORY MANDATORY SB369E-108R1 SB369F-094R1 SERVICE BULLETIN DATE: 5 MAY 2015 PAGE 8 OF 10 MANDATORY MANDATORY MANDATORY Bulletin Completed Record [Part 2] BRACKET ASSEMBLY, MOUNTING AFT POSITION LIGHT REPLACEMENT MD Helicopters, Inc. Field Service Department 4555 E. McDowell Road Mesa, AZ 85215−9734 800−388−3378 Phone (U.S. and Canada) 480−346−6387 Phone (International) 480−346−6813 Fax FAX this form to MDHI (480) 346−6813 or E−mail to [email protected] Owner /Operator: Helicopter Serial No: Address: Helicopter Total Time: Date Complete: Location: Phone: E−mail: [Part 2 of 3] This bulletin is complete: (Signature) (Print Name) (Title) Serial Number of modified tailboom: Comments: Copyright 1999-2014 by MD Helicopters Inc. This document may be reproduced and distributed provided no fee is charged, the text is not modified, and this copyright notice is included. MANDATORY MANDATORY MANDATORY SB369E-108R1 SB369F-094R1 SERVICE BULLETIN MANDATORY DATE: 5 MAY 2015 PAGE 9 OF 10 MANDATORY MANDATORY Bulletin Completed Record [Part 3] SUPPORT ASSEMBLY, ANTI−COLLISION LIGHT REPAIR MD Helicopters, Inc. Field Service Department 4555 E. McDowell Road Mesa, AZ 85215−9734 800−388−3378 Phone (U.S. and Canada) 480−346−6387 Phone (International) 480−346−6813 Fax FAX this form to MDHI (480) 346−6813 or E−mail to [email protected] Owner /Operator: Helicopter Serial No: Address: Helicopter Total Time: Date Complete: Location: Phone: E−mail: [Part 3 of 3] This bulletin is complete: (Signature) (Print Name) (Title) Serial Number of modified tailboom: Comments: Copyright 1999-2014 by MD Helicopters Inc. This document may be reproduced and distributed provided no fee is charged, the text is not modified, and this copyright notice is included. MANDATORY MANDATORY MANDATORY SB369E-108R1 SB369F-094R1 DATE: 5 MAY 2015 PAGE 10 OF 10 MANDATORY SERVICE BULLETIN MANDATORY MANDATORY This page intentionally left blank! Copyright 1999-2014 by MD Helicopters Inc. This document may be reproduced and distributed provided no fee is charged, the text is not modified, and this copyright notice is included. MANDATORY MANDATORY MANDATORY
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