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FR
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2011-12-15
article
Airworthiness Directives; The Boeing Company Airplanes
Proposed Rules
D09002ee1bdcc790c
D09002ee1bdcc7971
United States
Department of Transportation
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org
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 adopt a new airworthiness directive (AD) for all The Boeing Company Model 777 airplanes. This proposed AD was prompted by four reports of retaining cross bolt hardware not fully engaged into the fuse pins of the forward trunnion lower housing of the main landing gear (MLG), which could result in an incorrect MLG emergency landing break-away sequence. This proposed AD would require a detailed inspection of the fuse pin cross bolts and fuse pins of the left and right MLG forward trunnion lower housing to verify that the cross bolts are correctly installed and that there are no missing fuse pins, and replacement of the fuse pins if necessary. We are proposing this AD to prevent an incorrect emergency landing MLG break-away sequence, which could result in puncturing of the wing box and consequent fuel leaks and an airplane fire. Failure of the fuse pins could also result in a premature landing gear collapse causing a runway excursion during take- off or landing.
76 FR 77937
https://www.govinfo.gov/app/details/FR-2011-12-15/2011-32077
2011-32077
fr15de11-10
RIN 2120-AA64
4910-13-P
Docket No. FAA-2011-1320
Directorate Identifier 2011-NM-208-AD
https://www.govinfo.gov/app/details/FR-2011-12-15/2011-32077
https://www.govinfo.gov/content/pkg/FR-2011-12-15/html/2011-32077.htm
https://www.govinfo.gov/content/pkg/FR-2011-12-15/pdf/2011-32077.pdf
Air Transportation
Aircraft
Aviation Safety
Incorporation by Reference
Safety
3 p.
77937
77939
76 FR 77937
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. 76, Issue
PRORULE
2011-32077
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
2012-01-30
Docket No. FAA-2011-1320
Directorate Identifier 2011-NM-208-AD
4910-13-P
2011-32077
Notice of proposed rulemaking (NPRM).
We propose to adopt a new airworthiness directive (AD) for all The Boeing Company Model 777 airplanes. This proposed AD was prompted by four reports of retaining cross bolt hardware not fully engaged into the fuse pins of the forward trunnion lower housing of the main landing gear (MLG), which could result in an incorrect MLG emergency landing break-away sequence. This proposed AD would require a detailed inspection of the fuse pin cross bolts and fuse pins of the left and right MLG forward trunnion lower housing to verify that the cross bolts are correctly installed and that there are no missing fuse pins, and replacement of the fuse pins if necessary. We are proposing this AD to prevent an incorrect emergency landing MLG break-away sequence, which could result in puncturing of the wing box and consequent fuel leaks and an airplane fire. Failure of the fuse pins could also result in a premature landing gear collapse causing a runway excursion during take- off or landing.
We must receive comments on this proposed AD by January 30, 2012.
James Sutherland, Aerospace Engineer, Airframe Branch, ANM-120S, FAA, Seattle Aircraft Certification Office (ACO), 1601 Lind Avenue SW., Renton, Washington 98057-3356; phone: (425) 917-6533; fax: (425) 917-6590; email: James.Sutherland@faa.gov.
Air Transportation
Aircraft
Aviation Safety
Incorporation by Reference
Safety
Airworthiness Directives:
Boeing Co. Airplanes
,
9-ANM-Seattle-ACO-AMOC-Requests@faa.gov
James.Sutherland@faa.gov
me.boecom@boeing.com
http://www.regulations.gov
https://www.myboeingfleet.com
Federal Register
Vol. 76, no. 241
Office of the Federal Register, National Archives and Records Administration
2011-12-15
continuing
daily
deposited
born digital
208 p.
Table of Contents:
AE 2.7:
GS 4.107:
AE 2.106:
KF70.A2
https://www.govinfo.gov/app/details/FR-2011-12-15
P0b002ee181269e2d
0097-6326
0042-1219
0364-1406
769-004-00000-9
000582072
f:fr15de11
https://www.govinfo.gov/app/details/FR-2011-12-15
https://www.govinfo.gov/content/pkg/FR-2011-12-15/pdf/FR-2011-12-15.pdf
https://www.govinfo.gov/content/pkg/FR-2011-12-15/xml/FR-2011-12-15.xml
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