AD 83-21-04

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AD Number:
83-21-04
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
BOEING Model 767 and 757 Series Airplanes
Subject:
Outflow Valve Assemblies
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
11/28/1983
Make:
The Boeing Company
Model:
757-200 Series | 757-200CB Series | 757-200PF Series | 757-300 Series | 767-200 Series | 767-300 Ser...Show more
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Superseded AD: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Superseded By: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: 83-21-04
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-4750

AD NUMBER:   83-21-04

SUBJECT HEADING:   BOEING Model 767 and 757 Series Airplanes

ACTION:  

SUMMARY:  

DATES:   Effective November 28, 1983.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
83-21-04 BOEING: Amendment 39-4750. Applies to Boeing Model 767 and 757 series airplanes identified in the Boeing Service Bulletins listed in paragraph A., below. To prevent the loss of pressurization control due to failure of the cabin pressure control, accomplish the following within 750 hours time in service after the effective date of this AD, unless already accomplished:

A. Inspect and rework outflow valve actuators per Boeing Service Bulletins 757-21-9 or 767-21-13 dated May 23, 1983, and March 31, 1983, respectively as applicable, or later FAA approved revisions.

B. Rework the outflow valve assemblies per Boeing Service Bulletins 757-21-9 or 767- 21-15, Rev. 1, dated May 23, 1983, and March 31, 1983, respectively, as applicable, or later FAA approved revisions.

C. Alternate means of compliance which provide an equivalent level of safety may be used when approved by the Manager, Seattle Aircraft Certification Office, FAA, Northwest Mountain Region.

D. Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate airplanes to a base for the accomplishment of inspections and/or modifications required by this AD.

All persons affected by this directive who have not already received the service bulletin(s) may obtain copies upon request from the Boeing Commercial Airplane Company, P.O. Box 3707, Seattle, Washington 98124. These documents may also be examined at the FAA, Northwest Mountain Region, 9010 East Marginal Way South, Seattle, Washington.

This amendment becomes effective November 28, 1983.

FOOTER: