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2014-13-07 |
THE BOEING COMPANY: Amendment 39-17883; Docket
No. FAA-2012-0863; Directorate Identifier 2012-NM-108-AD.
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(a) EFFECTIVE DATE This AD is effective August 19, 2014. (b) AFFECTED ADS None. (c) APPLICABILITY This AD applies to The Boeing Company airplanes, certificated in any category, as identified in paragraphs (c)(1) and (c)(2) of this AD. (1) Model 737-300, -400 and -500 series airplanes, as identified in Boeing Special Attention Service Bulletin 737-33-1149, dated April 13, 2012. (2) Model 737-600, -700, -700C, -800, -900 and -900ER series airplanes, as identified in Boeing Special Attention Service Bulletin 737-33-1146, Revision 1, dated July 9, 2013. (3) Installation of Supplemental Type Certificate (STC) ST00830SE (http:// rgl.faa.gov/Regulatory-and-Guidance-Library/rgstc.nsf/0/da95c49000906c 7086257be80044d3d9/$FILE/ST00830SE.pdf) does not affect the ability to accomplish the actions required by this AD. Therefore, for airplanes on which STC ST00830SE is installed, a "change in product" alternative method of compliance (AMOC) approval request is not necessary to comply with the requirements of 14 CFR 39.17. (d) SUBJECT Air Transport Association (ATA) of America Code 33, Lights. (e) UNSAFE CONDITION This AD was prompted by a review of the tail strobe light installation, which revealed that the tail strobe light is not electrically bonded to primary structure of the airplane. We are issuing this AD to prevent, in case of a direct lightning strike to the tail strobe light, damage to the operation of other critical airplane systems due to electromagnetic coupling and large transient voltages, and damage to the control mechanisms or surfaces due to a fire, which could result in loss of control of the airplane. (f) COMPLIANCE Comply with this AD within the compliance times specified, unless already done. (g) TAIL STROBE LIGHT INSTALLATION FOR MODEL 737-600, -700, -700C, -800, -900, AND -900ER SERIES AIRPLANES For Model 737-600, -700, -700C, -800, -900, and -900ER series airplanes on which the actions specified in Boeing Special Attention Service Bulletin 737-33-1146, dated November 2, 2011, have not been done before the effective date of this AD: Within 72 months after the effective date of this AD, install a new tail strobe light housing, install a new disconnect bracket, and change the wire bundles, in accordance with Part 1 of the Accomplishment Instructions of Boeing Special Attention Service Bulletin 737-33-1146, Revision 1, dated July 9, 2013, except as required by paragraphs (g)(1) and (g)(2) of this AD. (1) Where Figure 8, Flag Note 3, of Boeing Special Attention Service Bulletin 737-33-1146, Revision 1, dated July 9, 2013, refers to solder sleeve BACS13CT3C, the shield splice contained in splice kit D-150 -0168 may be used in lieu of solder sleeve (BACS13CT3C), provided a ground wire is used. Note 1 to paragraph (g)(1) of this AD: Guidance for wire-type information for the ground wires may be found in Boeing Standard Wiring Practices Manual (SWPM) D6-54446, Section 20-10-15. (2) Where the second sentence of note (c) of Figure 3 of the Accomplish- ment Instructions of Boeing Special Attention Service Bulletin 737-33 -1146, Revision 1, dated July 9, 2013, specifies to "Maintain a minimum of 1.7 Dimensions fastener edge margin on the disconnect bracket and the stiffener," instead "Maintain a minimum of 1.7 diameter fastener edge margin on the disconnect bracket and the stiffener." (h) INSPECTION AND CORRECTIVE ACTIONS FOR MODEL 737-600, -700, -700C, -800, -900, AND -900ER SERIES AIRPLANES For Model 737-600, -700, -700C, -800, -900, and -900ER series airplanes, on which the actions specified in Boeing Special Attention Service Bulletin 737-33-1146, dated November 2, 2011, have been done before the effective date of this AD: Within 72 months after the effective date of this AD, do a general visual inspection to ensure there is fillet sealant between the disconnect bracket and the receptacle connector D44582J, and on the fasteners, and do all applicable corrective actions, in accordance with Part 2 of the Accomplishment Instructions of Boeing Special Attention Service Bulletin 737-33-1146, Revision 1, dated July 9, 2013. Do all applicable corrective actions before further flight. (i) TAIL STROBE LIGHT INSTALLATION FOR MODEL 737-300, -400 AND -500 SERIES AIRPLANES For Model 737-300, -400, and -500 series airplanes: Within 72 months after the effective date of this AD, install a new tail strobe light housing, install a new disconnect bracket, and change the wire bundles, in accordance with the Accomplishment Instructions of Boeing Special Attention Service Bulletin 737-33-1149, dated April 13, 2012. (j) ALTERNATIVE METHODS OF COMPLIANCE (AMOCS) (1) The Manager, Seattle Aircraft Certification Office (ACO), FAA, has the authority to approve AMOCs for this AD, if requested using the proce- dures found in 14 CFR 39.19. In accordance with 14 CFR 39.19, send your request to your principal inspector or local Flight Standards District Office, as appropriate. If sending information directly to the manager of the ACO, send it to the attention of the person ident- ified in paragraph (k) of this AD. Information may be emailed to: 9-ANM-Seattle-ACO-AMOC-Requests@faa.gov. (2) Before using any approved AMOC, notify your appropriate principal in- spector, or lacking a principal inspector, the manager of the local flight standards district office/certificate holding district office. (3) An AMOC that provides an acceptable level of safety may be used for any repair required by this AD if it is approved by the Boeing Commercial Airplanes Organization Designation Authorization (ODA) that has been authorized by the Manager, Seattle ACO, to make those findings. For a repair method to be approved, the repair must meet the certification basis of the airplane, and the approval must specifically refer to this AD. (k) RELATED INFORMATION (1) For more information about this AD, contact Marie Hogestad, Aerospace Engineer, Systems and Equipment Branch FAA, ANM-130S, Seattle Aircraft Certification Office, 1601 Lind Avenue SW., Renton, WA 98057-3356; phone: 425-917-6418; fax: 425-917-6590; email: marie.hogestad@faa.gov. (2) For service information identified in this AD that is not incorporated by reference in this AD, contact Boeing Commercial Airplanes, Attention: Data & Services Management, P.O. Box 3707, MC 2H-65, Seattle, WA 98124-2207; telephone 206-544-5000, extension 1; fax 206- 766-5680; Internet https://www.myboeingfleet.com. You may view this referenced service information at the FAA, Transport Airplane Directorate, 1601 Lind Avenue SW., Renton, WA. For information on the availability of this material at the FAA, call 425-227-1221. (l) MATERIAL INCORPORATED BY REFERENCE (1) The Director of the Federal Register approved the incorporation by reference (IBR) of the service information listed in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51. (2) You must use this service information as applicable to do the actions required by this AD, unless the AD specifies otherwise. (i) Boeing Special Attention Service Bulletin 737-33-1146, Revision 1, dated July 9, 2013. (ii) Boeing Special Attention Service Bulletin 737-33-1149, dated April 13, 2012. (3) For Boeing service information identified in this AD, contact Boeing Commercial Airplanes, Attention: Data & Services Management, P. O. Box 3707, MC 2H-65, Seattle, WA 98124-2207; telephone 206-544-5000, exten- sion 1; fax 206-766-5680; Internet https://www.myboeingfleet.com. (4) You may view this service information at FAA, Transport Airplane Directorate, 1601 Lind Avenue SW., Renton, WA. For information on the availability of this material at the FAA, call 425-227-1221. (5) You may view this service information that is incorporated by reference at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call 202-741-6030, or go to: http://www.archives.gov/federal-register/cfr/ ibr-locations.html. Issued in Renton, Washington, on June 19, 2014. Michael Kaszycki, Acting Manager, Transport Airplane Directorate, Aircraft Certification Service. FOR FURTHER INFORMATION CONTACT: Marie Hogestad, Aerospace Engineer, Systems and Equipment Branch, FAA, ANM-130S, Seattle Aircraft Certification Office, 1601 Lind Avenue SW., Renton, WA 98057-3356; phone: 425-917-6418; fax: 425-917-6590; email: marie.hogestad@faa.gov.
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AGENCY: Federal Aviation Administration
(FAA), DOT. Estimated Costs ---------------------------------------------------------------------------------------------------------------- Action Labor cost Parts cost Cost per product Cost on U.S. operators ---------------------------------------------------------------------------------------------------------------- Installation for Model 737- Up to 32 work- Up to $14,886... Up to $17,606...... Up to $6,971,976. 300, -400, and -500 series hours x $85 per airplanes, as identified in hour = Up to Boeing Special Attention $2,720. Service Bulletin 737-33-1149, dated April 13, 2012 (396 U.S. registered airplanes).
The parts cost to apply sealant between
the disconnect bracket and |