AD 92-10-02

92-10-02 BRITISH AEROSPACE: Amendment 39-8235. Docket No. 91-NM-279-AD. Applicability: Model BAe 146-100A, -200A, and -300A series airplanes, certificated in any category.

Compliance: Required as indicated, unless accomplished previously.

To prevent loss of all radio communication, accomplish the following:

(a) Within 60 days after the effective date of this AD, remove Capacitor C68 (2.2uF, 35V) from the central audio unit station selector boards in accordance with British Aerospace Modification Service Bulletin SB.23-36-01238A, dated December 21, 1990.

(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. The request shall be forwarded through an FAA Principal Maintenance Inspector, who may concur or comment and then send it to the Manager, Standardization Branch.

(c) Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate the airplane to a location where the requirements of this AD can be accomplished.

(d) The modification shall be done in accordance with British Aerospace Modification Service Bulletin SB.23-36-01238A, dated December 21, 1990, certificated in any category. This incorporation by reference was approved by the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR Part 51. Copies may be obtained from British Aerospace, PLC. Librarian for Service Bulletins, P.O. Box 17414, Dulles International Airport, Washington D.C. 20041-0414. Copies may be inspected at the FAA, Transport Airplane Directorate, 1601 Lind Avenue SW., Renton, Washington; or at the Office of the Federal Register, 1100 L Street NW., Room 8401, Washington, DC.

(e) This amendment becomes effective on June 11, 1992.