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FR
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2012-08-03
article
Airworthiness Directives; The Boeing Company Airplanes
Proposed Rules
D09002ee1bdcb56fe
D09002ee1bdcb577d
United States
Department of Transportation
originator
org
United States Government Agency or Subagency
United States
Federal Aviation Administration
originator
org
United States Government Agency or Subagency
We propose to supersede an existing airworthiness directive (AD) that applies to all The Boeing Company Model 777-200, -200LR, - 300, and -300ER series airplanes. The existing AD currently requires repetitive inspections for cracking of the elevator actuator fittings. Since we issued that AD, the manufacturer has developed a modification that was approved as an optional terminating action to the currently required repetitive inspections. We have been advised that the modification procedures include certain incorrect torque values. This proposed AD would require, for previously modified airplanes, repetitive inspections for movement of the fittings or fastener heads, and eventual replacement of certain bolts (including related investigative and corrective actions if necessary). For all airplanes, this replacement, with corrected torque values, would terminate the requirements of the AD. This proposed AD would also remove certain airplanes from the applicability. We are proposing this AD to detect and correct a cracked actuator fitting or incorrectly installed bolts to the actuator fitting, which could lead to the elevator becoming detached and unrestrained, and a consequent unacceptable flutter condition and loss of control of the airplane.
77 FR 46340
https://www.govinfo.gov/app/details/FR-2012-08-03/2012-18882
2012-18882
fr03au12-20
RIN 2120-AA64
4910-13-P
Docket No. FAA-2012-0803
Directorate Identifier 2011-NM-214-AD
https://www.govinfo.gov/app/details/FR-2012-08-03/2012-18882
https://www.govinfo.gov/content/pkg/FR-2012-08-03/html/2012-18882.htm
https://www.govinfo.gov/content/pkg/FR-2012-08-03/pdf/2012-18882.pdf
Air Transportation
Aircraft
Aviation Safety
Incorporation by Reference
Safety
4 p.
46340
46343
77 FR 46340
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. 77, Issue
PRORULE
2012-18882
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
2012-09-17
Docket No. FAA-2012-0803
Directorate Identifier 2011-NM-214-AD
4910-13-P
2012-18882
Notice of proposed rulemaking (NPRM).
We propose to supersede an existing airworthiness directive (AD) that applies to all The Boeing Company Model 777-200, -200LR, - 300, and -300ER series airplanes. The existing AD currently requires repetitive inspections for cracking of the elevator actuator fittings. Since we issued that AD, the manufacturer has developed a modification that was approved as an optional terminating action to the currently required repetitive inspections. We have been advised that the modification procedures include certain incorrect torque values. This proposed AD would require, for previously modified airplanes, repetitive inspections for movement of the fittings or fastener heads, and eventual replacement of certain bolts (including related investigative and corrective actions if necessary). For all airplanes, this replacement, with corrected torque values, would terminate the requirements of the AD. This proposed AD would also remove certain airplanes from the applicability. We are proposing this AD to detect and correct a cracked actuator fitting or incorrectly installed bolts to the actuator fitting, which could lead to the elevator becoming detached and unrestrained, and a consequent unacceptable flutter condition and loss of control of the airplane.
We must receive comments on this proposed AD by September 17, 2012.
Melanie Violette, Aerospace Engineer, Airframe Branch, ANM-120S, FAA, Seattle Aircraft Certification Office, 1601 Lind Avenue SW., Renton, WA 985057-3356; phone: 425-917-6422; fax: 425-917-6590; email: melanie.violette@faa.gov.
Air Transportation
Aircraft
Aviation Safety
Incorporation by Reference
Safety
Airworthiness Directives:
The Boeing Company Airplanes
,
9-ANM-Seattle-ACO-AMOC-Requests@faa.gov
melanie.violette@faa.gov
http://www.regulations.gov
https://www.myboeingfleet.com
Federal Register
Vol. 77, no. 150
Office of the Federal Register, National Archives and Records Administration
2012-08-03
continuing
daily
deposited
born digital
354 p.
Table of Contents:
AE 2.7:
GS 4.107:
AE 2.106:
KF70.A2
https://www.govinfo.gov/app/details/FR-2012-08-03
P0b002ee183371b13
0097-6326
0042-1219
0364-1406
769-004-00000-9
000582072
f:fr03au12
https://www.govinfo.gov/app/details/FR-2012-08-03
https://www.govinfo.gov/content/pkg/FR-2012-08-03/pdf/FR-2012-08-03.pdf
https://www.govinfo.gov/content/pkg/FR-2012-08-03/xml/FR-2012-08-03.xml
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FR-2012-08-03
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