AD 91-13-05

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AD Number:
91-13-05
Document Type:
AD Final Rules
Docket Number:
90-NM-286-AD
Subject Heading:
Airworthiness Directives; British Aerospace Model ATP Series Airplanes
Subject:
Motor Clutch Housing
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
07/15/1991
Make:
BAE Systems (Operations) Limited
Model:
ATP
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Superseded AD: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Superseded By: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: 91-13-05
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   90-NM-286-AD

AMENDMENT:   39-7036

AD NUMBER:   91-13-05

SUBJECT HEADING:   Airworthiness Directives; British Aerospace Model ATP Series Airplanes

ACTION:  

SUMMARY:  

DATES:   Effective on July 15, 1991.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
91-13-05 BRITISH AEROSPACE: Amendment 39-7036. Docket No. 90-NM-286-AD.
Applicability: Model ATP series airplanes; equipped with Lucas starter motors, Part Numbers C5114-04, C5114-05, C5114-07, and C5114-08; certificated in any category.

Compliance: Required as indicated, unless previously accomplished.

To prevent loss of engine oil and damage to the engine, accomplish the following:

A. Within 30 days after the effective date of this AD, and thereafter at intervals not to exceed 250 hours time-in-service, perform a detailed visual inspection of the securing nuts and locking tab washers used to secure the motor section to the clutch housing, in accordance with British Aerospace Service Bulletin ATP-80-3, dated September 10, 1990. If any parts are damaged or loose, prior to further flight, repair in accordance with the service bulletin.

NOTE: The British Aerospace Service Bulletin references Lucas Service Bulletins C5114-80-8 and C5114-80-9 for additional information.

B. Within 150 days after the effective date of this AD, replace existing studs 80220185, tab washers SP42C, and nuts A24CP, with new bolts N137210-14 and washers AS12943, and lock new bolts with tie wire, in accordance with British Aerospace Service Bulletin ATP-80-4, dated November 23, 1990. This modification constitutes terminating action for the repetitive inspections required by paragraph A. of this AD.

NOTE: The British Aerospace Service Bulletin references Lucas Service Bulletin C5114-80-A9 for additional information.

C. 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, Standardization Branch, ANM-113, FAA, Transport Airplane Directorate.

NOTE: The request should be forwarded through an FAA Principal Maintenance Inspector, who may concur or comment and then send it to the Manager, Standardization Branch, ANM-113.

D. 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 documents from the manufacturer may obtain copies upon request to British Aerospace, PLC, Librarian for Service Bulletins, P.O. Box 17414, Dulles International Airport, Washington, D.C. 20041-0414. These documents may be examined at the FAA, Northwest Mountain Region, Transport Airplane Directorate, 1601 Lind Avenue S.W., Renton, Washington.

This amendment (39-7036, AD 91-13-05) becomes effective on July 15, 1991.

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