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2010-09-24
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Airworthiness Directives; Boeing Model 737-100, -200, -300, -400, and -500 Series Airplanes
Rules and Regulations
D09002ee1bdfefb15
D09002ee1bdfefbc3
United States
Department of Transportation
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United States Government Agency or Subagency
United States
Federal Aviation Administration
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org
United States Government Agency or Subagency
This amendment supersedes an existing airworthiness directive (AD), applicable to all Boeing Model 737-100, -200, -300, -400, and - 500 series airplanes, that currently requires removal of the fuel boost pump wiring in the conduits of the wing and center fuel tanks; an inspection to detect damage of the wiring, and corrective action, if necessary; and eventual installation of Teflon sleeving over the electrical cable. That AD was prompted by reports of severe wear of the fuel boost pump wiring due to chafing between the wiring and the surrounding conduit inside the fuel tank; pin-hole-sized holes in the conduit that appear to be the result of arc-through of the conduit; and exposure of the main tank boost pump wire conductor inside a conduit and signs of arcing to the wall of the conduit. This amendment expands the inspection requirement to include additional airplanes. The actions specified by this AD are intended to detect and correct chafing and electrical arcing between the fuel boost pump wiring and the surrounding conduit, which, if not corrected, could result in arc- through of the conduit, and consequent fire or explosion of the fuel tank.
63 FR 52152
https://www.govinfo.gov/app/details/FR-1998-09-30/98-25971
98-25971
fr30se98-7
RIN 2120-AA64
4910-13-U
Docket No. 98-NM-254-AD
Amendment 39-10751
AD 98-19-09
https://www.govinfo.gov/app/details/FR-1998-09-30/98-25971
https://www.govinfo.gov/content/pkg/FR-1998-09-30/html/98-25971.htm
https://www.govinfo.gov/content/pkg/FR-1998-09-30/pdf/98-25971.pdf
4 p.
52152
52155
63 FR 52152
Code of Federal Regulations
Title 14 Part 39
14 CFR Part 39
Regulation Identification Number 2120-AA64
RIN 2120-AA64
Airworthiness Directives; Boeing Model 737-100, -200, -300, -400, and -500 Series Airplanes; Federal Register Vol. 63, Issue
RULE
98-25971
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
1998-10-15
Docket No. 98-NM-254-AD
Amendment 39-10751
AD 98-19-09
4910-13-U
98-25971
Final rule; request for comments.
This amendment supersedes an existing airworthiness directive (AD), applicable to all Boeing Model 737-100, -200, -300, -400, and - 500 series airplanes, that currently requires removal of the fuel boost pump wiring in the conduits of the wing and center fuel tanks; an inspection to detect damage of the wiring, and corrective action, if necessary; and eventual installation of Teflon sleeving over the electrical cable. That AD was prompted by reports of severe wear of the fuel boost pump wiring due to chafing between the wiring and the surrounding conduit inside the fuel tank; pin-hole-sized holes in the conduit that appear to be the result of arc-through of the conduit; and exposure of the main tank boost pump wire conductor inside a conduit and signs of arcing to the wall of the conduit. This amendment expands the inspection requirement to include additional airplanes. The actions specified by this AD are intended to detect and correct chafing and electrical arcing between the fuel boost pump wiring and the surrounding conduit, which, if not corrected, could result in arc- through of the conduit, and consequent fire or explosion of the fuel tank.
Effective October 15, 1998.
Dorr Anderson, Aerospace Engineer, Propulsion Branch, ANM-140S, FAA, Transport Airplane Directorate, Seattle Aircraft Certification Office, 1601 Lind Avenue, SW., Renton, Washington 98055-4056; telephone (425) 227-2684; fax (425) 227-1181.
Federal Register
Vol. 63, no. 189
Office of the Federal Register, National Archives and Records Administration
1998-09-30
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458 p.
Table of Contents:
AE 2.7:
GS 4.107:
AE 2.106:
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https://www.govinfo.gov/app/details/FR-1998-09-30
P0b002ee180a77e16
0097-6326
0042-1219
0364-1406
769-004-00000-9
000582072
f:fr30se98
https://www.govinfo.gov/app/details/FR-1998-09-30
https://www.govinfo.gov/content/pkg/FR-1998-09-30/pdf/FR-1998-09-30.pdf
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2010-09-24
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FR-1998-09-30
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