AD 92-18-06

92-18-06 BRITISH AEROSPACE: Amendment 39-8350. Docket No. 92-NM-46-AD. Applicability: Model BAe 146-100A, -200A, and -300A series airplanes, equipped with Dunlop hydraulic fuses, part number ACM29100; certificated in any category.

Compliance: Required as indicated, unless accomplished previously.

To prevent potential loss of airplane braking and directional control, accomplish the following:

(a) Prior to the accumulation of 4,000 landings since installation of Dunlop hydraulic fuses having part number ACM29100 (Mod. states 1 or 2), or within 60 days after the effective date of this AD, whichever occurs later, remove green and yellow hydraulic systems Dunlop hydraulic fuses having part number ACM29100 (Mod. states 1 or 2) and install new hydraulic fuses having part number ACM30506 (Mod. 1), in accordance with British Aerospace Modification Service Bulletin SB.32-130-70295C, dated September 27, 1991.

(b) An alternative method of compliance or adjustment of the compliance time that provides an acceptable level of safety may be used if approved by the Manager, Standardization Branch, ANM-113, FAA, Transport Airplane Directorate. Operators shall submit their requests through an appropriate FAA Principal Maintenance Inspector, who may add comments and then send it to the Manager, Standardization Branch, ANM-113.

NOTE: Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be obtained from the 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 removal and installation shall be done in accordance with British Aerospace Modification Service Bulletin SB.32-130-70295C, dated September 27, 1991. 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, DC. 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, 800 North Capitol Street, NW., suite 700, Washington, DC.

(e) This amendment becomes effective on October 8, 1992.