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2010-09-24
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Airworthiness Directives; Boeing Model 747 Series Airplanes
Rules and Regulations
D09002ee1bdf7d1ae
D09002ee1bdf7d203
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
This amendment supersedes an existing airworthiness directive (AD), applicable to all Boeing Model 747 series airplanes, that currently requires repetitive inspections to detect cracking of the forward and aft inner chords and the splice fitting of the forward inner chord of the station 2598 bulkhead, and repair, if necessary. This amendment adds repetitive inspections of an expanded inspection area, which ends the inspections specified in the existing AD. This amendment also limits the applicability of the existing AD. This amendment is prompted by reports indicating that fatigue cracking was found on airplanes that had accumulated fewer total flight cycles than the threshold specified in the existing AD. The actions specified by this AD are intended to detect and correct fatigue cracking of the forward and aft inner chords, the frame support, and the splice fitting of the forward inner chord of the upper corner of the station 2598 bulkhead, which could result in reduced structural capability of the bulkhead and the inability of the structure to carry horizontal stabilizer flight loads.
66 FR 38365
https://www.govinfo.gov/app/details/FR-2001-07-24/01-18139
01-18139
fr24jy01-7
RIN 2120-AA64
4910-13-P
Docket No. 2000-NM-331-AD
Amendment 39-12337
AD 2001-15-03
https://www.govinfo.gov/app/details/FR-2001-07-24/01-18139
https://www.govinfo.gov/content/pkg/FR-2001-07-24/html/01-18139.htm
https://www.govinfo.gov/content/pkg/FR-2001-07-24/pdf/01-18139.pdf
Air Transportation
Aircraft
Aviation Safety
Incorporation by Reference
Safety
3 p.
38365
38367
66 FR 38365
Code of Federal Regulations
Title 14 Part 39
14 CFR Part 39
Regulation Identification Number 2120-AA64
RIN 2120-AA64
Airworthiness Directives; Boeing Model 747 Series Airplanes; Federal Register Vol. 66, Issue
RULE
01-18139
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
2001-08-28
Docket No. 2000-NM-331-AD
Amendment 39-12337
AD 2001-15-03
4910-13-P
01-18139
Final rule.
This amendment supersedes an existing airworthiness directive (AD), applicable to all Boeing Model 747 series airplanes, that currently requires repetitive inspections to detect cracking of the forward and aft inner chords and the splice fitting of the forward inner chord of the station 2598 bulkhead, and repair, if necessary. This amendment adds repetitive inspections of an expanded inspection area, which ends the inspections specified in the existing AD. This amendment also limits the applicability of the existing AD. This amendment is prompted by reports indicating that fatigue cracking was found on airplanes that had accumulated fewer total flight cycles than the threshold specified in the existing AD. The actions specified by this AD are intended to detect and correct fatigue cracking of the forward and aft inner chords, the frame support, and the splice fitting of the forward inner chord of the upper corner of the station 2598 bulkhead, which could result in reduced structural capability of the bulkhead and the inability of the structure to carry horizontal stabilizer flight loads.
Effective August 28, 2001.
Rick Kawaguchi, Aerospace Engineer, Airframe Branch, ANM-120S, FAA, Seattle Aircraft Certification Office, 1601 Lind Avenue, SW., Renton, Washington 98055-4056; telephone (425) 227-1153; fax (425) 227-1181.
Air Transportation
Aircraft
Aviation Safety
Incorporation by Reference
Safety
Airworthiness directives:
Boeing,
Federal Register
Vol. 66, no. 142
Office of the Federal Register, National Archives and Records Administration
2001-07-24
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184 p.
Table of Contents:
AE 2.7:
GS 4.107:
AE 2.106:
KF70.A2
https://www.govinfo.gov/app/details/FR-2001-07-24
P0b002ee180a17f94
0097-6326
0042-1219
0364-1406
769-004-00000-9
000582072
f:fr24jy01
https://www.govinfo.gov/app/details/FR-2001-07-24
https://www.govinfo.gov/content/pkg/FR-2001-07-24/pdf/FR-2001-07-24.pdf
https://www.govinfo.gov/content/pkg/FR-2001-07-24/xml/FR-2001-07-24.xml
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2010-09-24
2023-05-05
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