AD 91-14-04

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AD Number:
91-14-04
Document Type:
AD Final Rules
Docket Number:
90-NM-271-AD
Subject Heading:
Airworthiness Directives; British Aerospace Model BAe 146-100A and 146-200A Series Airplanes
Subject:
Inspect Earth Stud
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
07/29/1991
Make:
BAE Systems (Operations) Limited
Model:
BAe 146-100A | BAe 146-200A
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Superseded AD: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Superseded By: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: 91-14-04
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   90-NM-271-AD

AMENDMENT:   39-7046

AD NUMBER:   91-14-04

SUBJECT HEADING:   Airworthiness Directives; British Aerospace Model BAe 146-100A and 146-200A Series Airplanes

ACTION:  

SUMMARY:  

DATES:   Effective on July 29, 1991.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
91-14-04 BRITISH AEROSPACE: Amendment 39-7046. Docket No. 90-NM-271-AD.
Applicability: Model BAe 146-100A and 146-200A series airplanes, as listed in British Aerospace Service Bulletin 24-60, dated May 31, 1990, certificated in any category.

Compliance: Required as indicated, unless previously accomplished.

To prevent failure or improper functioning of the wing flap, landing gear anti-skid, and turbine vibration indication systems, accomplish the following:

A. Within 30 days after the effective date of this AD, perform a visual inspection of the earth stud on the avionics rack at Frame 17, in accordance with British Aerospace Service Bulletin 24-60, dated May 31, 1990.

1. If the earth stud is approximately 33.0 inches from the airplane's center line, prior to further flight, perform a visual inspection of the adjacent wiring harnesses for chafing damage, and reclip any harnesses to ensure adequate clearance between the wire harnesses and the earth stud, in accordance with the service bulletin. Repair or replace any damaged wires prior to further flight.

2. If the earth stud is not positioned approximately 33.0 inches from the airplane's center line, prior to further flight, accomplish the following:

a. Perform an inspection of the adjacent wiring harnesses for signs of chafing damage, and, if damage is found, repair or replace any damaged wires prior to further flight in accordance with the service bulletin.

b. Remove the existing earth stud and install a new earth stud having the same part number in accordance with Figure 1 of the service bulletin.

c. Move and resecure any wiring harnesses that may contact the earth stud, in accordance with the service bulletin.

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

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

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 British Aerospace, PLC, Librarian for Service Bulletins, P.O. Box 17414, Dulles International Airport, Washington, D.C. 20041. This information may be examined at the FAA, Northwest Mountain Region, Transport Airplane Directorate, 1601 Lind Avenue S.W., Renton, Washington.

This amendment (39-7046, AD 91-14-04) becomes effective on July 29, 1991.

FOOTER: