AD 87-10-02

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AD Number:
87-10-02
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Airworthiness Directives; BOEING Model 767 Series Airplane
Subject:
Flap Drive Vapor Seals
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
05/22/1987
Make:
The Boeing Company
Model:
767-200 Series | 767-300 Series | 767-300F 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Superseded AD: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Superseded By: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: 87-10-02
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-5620

AD NUMBER:   87-10-02

SUBJECT HEADING:   Airworthiness Directives; BOEING Model 767 Series Airplane

ACTION:  

SUMMARY:  

DATES:   Effective May 22, 1987.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
87-10-02 BOEING: Amendment 39-5620. Applies to Model 767 series airplanes, as listed in Boeing Alert Service Bulletin 767-27A0074, dated March 20, 1987, certificated in any category. Compliance required as indicated, unless previously accomplished.

To prevent lateral control system restriction or jamming resulting from improper installation of a trailing edge flap drive vapor seal, accomplish the following:

A. Within the next 100 landings or 30 days after the effective date of this AD, whichever occurs first, inspect the trailing edge flap drive vapor seals for correct installation in accordance with Boeing Alert Service Bulletin 767-27A0074, dated March 20, 1987, or later FAA-approved revision. Vapor seals found to be installed incorrectly must be reworked to correct the installation before further flight in accordance with the instructions contained in the aforementioned alert service bulletin.

NOTE: At the time of issuance of this AD, the Boeing 767 Illustrated Parts Catalog, the Boeing 767 Maintenance Manual, and the Boeing 767 Maintenance Planning Data document all contained illustrations depicting a trailing edge flap drive vapor seal installed incorrectly, with the vapor seal flanges aligned vertically. The FAA-approved airplane maintenance program should be revised to take account of these errors.

B. An alternate means of compliance which provides an acceptable level of safety, may be used when approved by the Manager, Seattle Aircraft Certification Office, FAA, Northwest Mountain Region.

C. Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate airplanes to a base in order to comply with the requirements of this AD.

All persons affected by this directive who have not already received the appropriate service information from the manufacturer may obtain copies upon request to the Boeing Commercial Airplane Company, P.O. Box 3707, Seattle, Washington 98124. This information may be examined at FAA, Northwest Mountain Region, 17900 Pacific Highway South, Seattle, Washington, or Seattle Aircraft Certification Office, FAA, Northwest Mountain Region, 9010 East Marginal Way South, Seattle, Washington.

This amendment 39-5620 becomes effective May 22, 1987.

FOOTER: