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2018-02-16
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Airworthiness Directives; The Boeing Company Airplanes
Proposed Rules
D09002ee1bdc35633
D09002ee1bdc356e1
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
We propose to supersede Airworthiness Directive (AD) 2004-13- 02, which applies to certain The Boeing Company Model 747-100, -200B, and -200F series airplanes. AD 2004-13-02 currently requires initial and repetitive inspections to find discrepancies in the upper and lower skins of the fuselage lap joints, and repair if necessary. Since we issued AD 2004-13-02, an evaluation by the design approval holder (DAH) indicates that the longitudinal lap joints are subject to widespread fatigue damage (WFD), and that a structural modification at the lap joint, and post-modification repetitive inspections of the skin, existing internal doubler, or splice strap for cracks, and corrective actions if necessary, are required to reach the limit of validity (LOV). This proposed AD would add post-repair inspections for cracking and corrosion, and repair if necessary; structural modification at the lap joints; and post-modification inspections for cracking and corrosion, and repair if necessary. We are proposing this AD to detect and correct fatigue cracking in the upper and lower skins of the fuselage lap joints, which could result in sudden fracture and failure of a lap joint and rapid in-flight decompression of the airplane fuselage.
80 FR 3506
https://www.govinfo.gov/app/details/FR-2015-01-23/2015-00955
2015-00955
fr23ja15-16
RIN 2120-AA64
4910-13-P
Docket No. FAA-2014-1052
Directorate Identifier 2014-NM-140-AD
https://www.govinfo.gov/app/details/FR-2015-01-23/2015-00955
https://www.govinfo.gov/content/pkg/FR-2015-01-23/html/2015-00955.htm
https://www.govinfo.gov/content/pkg/FR-2015-01-23/pdf/2015-00955.pdf
Air Transportation
Aircraft
Aviation Safety
5 p.
3506
3510
80 FR 3506
Code of Federal Regulations
Title 14 Part 39
14 CFR Part 39
Regulation Identification Number 2120-AA64
RIN 2120-AA64
Airworthiness Directives; The Boeing Company Airplanes; Federal Register Vol. 80, Issue
PRORULE
2015-00955
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
2015-03-09
Docket No. FAA-2014-1052
Directorate Identifier 2014-NM-140-AD
4910-13-P
2015-00955
Notice of proposed rulemaking (NPRM).
We propose to supersede Airworthiness Directive (AD) 2004-13- 02, which applies to certain The Boeing Company Model 747-100, -200B, and -200F series airplanes. AD 2004-13-02 currently requires initial and repetitive inspections to find discrepancies in the upper and lower skins of the fuselage lap joints, and repair if necessary. Since we issued AD 2004-13-02, an evaluation by the design approval holder (DAH) indicates that the longitudinal lap joints are subject to widespread fatigue damage (WFD), and that a structural modification at the lap joint, and post-modification repetitive inspections of the skin, existing internal doubler, or splice strap for cracks, and corrective actions if necessary, are required to reach the limit of validity (LOV). This proposed AD would add post-repair inspections for cracking and corrosion, and repair if necessary; structural modification at the lap joints; and post-modification inspections for cracking and corrosion, and repair if necessary. We are proposing this AD to detect and correct fatigue cracking in the upper and lower skins of the fuselage lap joints, which could result in sudden fracture and failure of a lap joint and rapid in-flight decompression of the airplane fuselage.
We must receive comments on this proposed AD by March 9, 2015.
Bill Ashforth, Aerospace Engineer, Airframe Branch, ANM-120S, FAA, Seattle Aircraft Certification Office (ACO), 1601 Lind Avenue SW., Renton, WA 98057-3356; phone: 425-917- 6432; fax: 425-917-6590; email: Bill.Ashforth@faa.gov.
Air Transportation
Aircraft
Aviation Safety
Airworthiness Directives:
The Boeing Company Airplanes
,
9-ANM-Seattle-ACO-AMOC-Requests@faa.gov
Bill.Ashforth@faa.gov
http://www.regulations.gov
https://www.myboeingfleet.com
Federal Register
Vol. 80, no. 15
Office of the Federal Register, National Archives and Records Administration
2015-01-23
continuing
daily
deposited
born digital
411 p.
Table of Contents:
AE 2.7:
GS 4.107:
AE 2.106:
KF70.A2
https://www.govinfo.gov/app/details/FR-2015-01-23
P0b002ee1987a7ff4
0097-6326
0042-1219
0364-1406
769-004-00000-9
000582072
f:fr23ja15
https://www.govinfo.gov/app/details/FR-2015-01-23
https://www.govinfo.gov/content/pkg/FR-2015-01-23/pdf/FR-2015-01-23.pdf
https://www.govinfo.gov/content/pkg/FR-2015-01-23/xml/FR-2015-01-23.xml
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