87-21-06 BRITISH AEROSPACE: Amendment 39-5744. Applies to Model BAC 1-11 - 200 and -400 series airplanes, listed in British Aerospace Campaign Wire 52-CW-PM 5448, Issue 2, dated September 18, 1987, certificated in any category. Compliance required as indicated, unless previously accomplished.
To prevent sudden decompression of the fuselage as a result of failure of the rear passenger door, accomplish the following:
A. Within the next 100 landings, or within 30 days after the effective date of this AD, or prior to the accumulation of 20,000 landings, whichever occurs later, inspect the rear passenger door structure for cracks, in accordance with British Aerospace Campaign Wire 52-CW-PM5448, Issue 2, dated September 18, 1987.
B. Repair or replace cracked structure, before further flight, in accordance with campaign wire.
C. Repeat the inspection required by paragraph 1., above, at intervals not to exceed:
1. 800 landings for airplanes with doors that have the horizontal members repaired in accordance with the structural repair manual.
2. 1,200 landings for airplanes with doors in which the horizontal members were found undamaged at the last inspection or were replaced.
D. An alternate means 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, Northwest Mountain Region.
E. Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate airplanes unpressurized to a base for the accomplishment of the inspection required by this AD.
All persons affected by this directive who have not already received the appropriate service information, may obtain copies upon request to British Aerospace, Librarian for Service Bulletins, P.O. Box 17414, Dulles International Airport, Washington, D.C. 20041. This information may be examined at FAA, Northwest Mountain Region, 17900Pacific Highway South, Seattle, Washington, or the Seattle Aircraft Certification Office, 9010 East Marginal Way South, Seattle, Washington.
This amendment becomes effective October 21, 1987.