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Airworthiness Directives; Boeing Model 737-600, -700, -700C, -800 and -900 Series Airplanes
Rules and Regulations
D09002ee1bdd9d8a5
D09002ee1bdd9d927
United States
Department of Transportation
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United States Government Agency or Subagency
United States
Federal Aviation Administration
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United States Government Agency or Subagency
The FAA is adopting a new airworthiness directive (AD) for certain Boeing Model 737-600, -700, -700C, -800 and -900 series airplanes. This AD requires an inspection of the fillet sealant at the inboard and outboard sides of the receptacles in the wheel wells of the main landing gear, and related investigative/corrective actions if necessary. This AD results from reports of in-production airplanes with missing or insufficient fillet sealant around the receptacles at the disconnect bracket. We are issuing this AD to prevent corrosion damage due to missing or insufficient fillet sealant. Such corrosion could result in insufficient electrical bonding between the connectors and the disconnect bracket, and consequent loss of the shielding that protects the wire bundles from lightning, electromagnetic interference (EMI), and high intensity radiated field (HIRF). Loss of lightning, EMI, and HIRF protection at those receptacles could cause failure of multiple electrical systems and subsequent loss of several critical control systems that are necessary for safe flight. In addition, a lightning strike could cause arcing in the fuel tank; this potential ignition source, in combination with flammable fuel vapors, could result in a fuel tank explosion and consequent loss of the airplane.
72 FR 64143
https://www.govinfo.gov/app/details/FR-2007-11-15/E7-22000
E7-22000
fr15no07-9
RIN 2120-AA64
4910-13-P
Docket No. FAA-2007-27740
Directorate Identifier 2006-NM-290-AD
Amendment 39-15256
AD 2007-23-10
https://www.govinfo.gov/app/details/FR-2007-11-15/E7-22000
https://www.govinfo.gov/content/pkg/FR-2007-11-15/html/E7-22000.htm
https://www.govinfo.gov/content/pkg/FR-2007-11-15/pdf/E7-22000.pdf
Air Transportation
Aircraft
Aviation Safety
Incorporation by Reference
Safety
3 p.
64143
64145
72 FR 64143
Code of Federal Regulations
Title 14 Part 39
14 CFR Part 39
Regulation Identification Number 2120-AA64
RIN 2120-AA64
Airworthiness Directives; Boeing Model 737-600, -700, -700C, -800 and -900 Series Airplanes; Federal Register Vol. 72, Issue
RULE
E7-22000
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
2007-12-20
Docket No. FAA-2007-27740
Directorate Identifier 2006-NM-290-AD
Amendment 39-15256
AD 2007-23-10
4910-13-P
E7-22000
Final rule.
The FAA is adopting a new airworthiness directive (AD) for certain Boeing Model 737-600, -700, -700C, -800 and -900 series airplanes. This AD requires an inspection of the fillet sealant at the inboard and outboard sides of the receptacles in the wheel wells of the main landing gear, and related investigative/corrective actions if necessary. This AD results from reports of in-production airplanes with missing or insufficient fillet sealant around the receptacles at the disconnect bracket. We are issuing this AD to prevent corrosion damage due to missing or insufficient fillet sealant. Such corrosion could result in insufficient electrical bonding between the connectors and the disconnect bracket, and consequent loss of the shielding that protects the wire bundles from lightning, electromagnetic interference (EMI), and high intensity radiated field (HIRF). Loss of lightning, EMI, and HIRF protection at those receptacles could cause failure of multiple electrical systems and subsequent loss of several critical control systems that are necessary for safe flight. In addition, a lightning strike could cause arcing in the fuel tank; this potential ignition source, in combination with flammable fuel vapors, could result in a fuel tank explosion and consequent loss of the airplane.
This AD becomes effective December 20, 2007.
Binh Tran, Aerospace Engineer, Systems and Equipment Branch, ANM-130S, FAA, Seattle Aircraft Certification Office, 1601 Lind Avenue, SW., Renton, Washington 98057-3356; telephone (425) 917-6485; fax (425) 917-6590.
Air Transportation
Aircraft
Aviation Safety
Incorporation by Reference
Safety
Airworthiness directives:
Boeing,
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Federal Register
Vol. 72, no. 220
Office of the Federal Register, National Archives and Records Administration
2007-11-15
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414 p.
Table of Contents:
AE 2.7:
GS 4.107:
AE 2.106:
KF70.A2
https://www.govinfo.gov/app/details/FR-2007-11-15
P0b002ee1809511f3
0097-6326
0042-1219
0364-1406
769-004-00000-9
000582072
f:fr15no07
https://www.govinfo.gov/app/details/FR-2007-11-15
https://www.govinfo.gov/content/pkg/FR-2007-11-15/pdf/FR-2007-11-15.pdf
https://www.govinfo.gov/content/pkg/FR-2007-11-15/xml/FR-2007-11-15.xml
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2010-09-22
2023-05-02
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