AD 92-10-08

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AD Number:
92-10-08
Document Type:
AD Final Rules
Docket Number:
92-NM-77-AD
Subject Heading:
Airworthiness Directives; BOEING Model 757-200 Series Airplanes
Subject:
Thrust Reverser
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
06/08/1992
Make:
The Boeing Company
Model:
757-200 Series | 757-200CB Series | 757-200PF Series
Product Type:
Aircraft
Product Subtype:
Large Airplane
Affected AD:
Superseded AD:
Affected By:
Superseded By:
Service/Office:
Office of Primary Responsibility:
CFR Part Reference:
Part 39
Comments:
AIRWORTHINESS DIRECTIVES FINAL RULES: 92-10-08
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   92-NM-77-AD

AMENDMENT:   39-8242

AD NUMBER:   92-10-08

SUBJECT HEADING:   Airworthiness Directives; BOEING Model 757-200 Series Airplanes

ACTION:  

SUMMARY:  

DATES:   Effective June 8, 1992

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
92-10-08 BOEING: Amendment 39-8242. Docket No. 92-NM-77-AD.

Applicability: Boeing Model 757-200 series airplanes equipped with Rolls-Royce RB211-535 series engines; as listed in Boeing Alert Service Bulletin 757-78A0030, dated January 31, 1992; certificated in any category.

Compliance: Required as indicated, unless accomplished previously.

To prevent in-flight deployment of both thrust reverser sleeves on one engine, which could result in reduced controllability of the airplane, accomplish the following:

(a) Within 90 days after the effective date of this AD, replace the restrictor union with a standard union, on each engine strut, in the return port of the thrust reverser directional control valve; and perform a functional test of the thrust reverser system; in accordance with Boeing Alert Service Bulletin 757-78A0030, dated January 31, 1992.

(b) An alternative method of compliance or adjustment of the compliance time, which provides an acceptable level of safety, may be used when approved by the Manager, Seattle Aircraft Certification Office (ACO), FAA, Transport Airplane Directorate. The request shall be forwarded through an FAA Principal Maintenance Inspector, who may concur or comment and then send it to the Manager, Seattle ACO.

(c) Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate the airplane to a location where the requirements of this AD can be accomplished.

(d) The replacement and functional test shall be done in accordance with Boeing Alert Service Bulletin 757-78A0030, dated January 31, 1992. This incorporation by reference was approved by the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR Part 51. Copies may be obtained from Boeing Commercial Airplane Group, P.O. Box 3707, Seattle, Washington 98124-2207. Copies may be inspected at the FAA, Transport Airplane Directorate, 1601 Lind Avenue SW., Renton, Washington; or at the Office of the Federal Register, 1100 L Street NW., Room 8401, Washington, DC.

(e) This amendment becomes effective on June 8, 1992.

FOOTER: