AD 85-25-05

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AD Number:
85-25-05
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
BOEING Model 757-200 Series Airplanes
Subject:
Self-Locking Nuts
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
12/21/1985
Make:
The Boeing Company
Model:
757-200 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Superseded AD: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Superseded By: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: 85-25-05
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-5178

AD NUMBER:   85-25-05

SUBJECT HEADING:   BOEING Model 757-200 Series Airplanes

ACTION:  

SUMMARY:  

DATES:   Effective December 21, 1985.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
85-25-05 BOEING: Amendment 39-5178. Applies to Model 757-200 series airplanes listed in Boeing Service Bulletin 757-27-0069, dated November 4, 1985. To detect nuts installed in the aileron, rudder and elevator power control actuators, and rudder ratio changer that have insufficient self-locking torque characteristics, accomplish the following, unless already accomplished:

A. Within 30 days after the effective date of this AD, check the self-locking nuts, P/N BACN10JC12CM or BACN10JC12CD, for proper self-locking torque in accordance with Paragraph III of Boeing Service Bulletin 757-27-0069, dated November 4, 1985, or later FAA- approved revision. If any self-locking nut is found not to meet the self-locking torque requirements of Boeing Service Bulletin 757-27-0069, dated November 4, 1985, or later FAA- approved revision, replace it prior to further flight with a nut found to meet the self-locking torque requirements of the above referenced service bulletin.

B. Alternate means of compliance which provide 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 for the accomplishment of inspections and/or modifications required by this AD.

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

This amendment becomes effective December 21, 1985.

FOOTER: