AD 88-06-04

88-06-04 BOEING: Amendment 39-5872. Applies to Model 757 series airplanes listed in Boeing Service Bulletin 757-53-0038, dated August 27, 1987, certificated in any category. Compliance required within 18 months after the effective date of this AD, unless previously accomplished.

To prevent structural failure of the vertical fin and horizontal stabilizers in the event of a failure of the aft pressure bulkhead, accomplish the following:

A. Install a vertical fin access door and horizontal stabilizer covers in accordance with Boeing Service Bulletin 757-53-0038, dated August 27, 1987, or later FAA-approved revision.

B. An alternate means of compliance or adjustment of the compliance time, which provides an acceptable level of safety and which has the concurrence of an FAA Principal Maintenance Inspector, may be used when approved by the Manager, Seattle Aircraft Certification Office, FAA, Northwest Mountain Region.

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 documents from the manufacturer may obtain copies upon request to the Boeing Commercial Airplane Company, P.O. Box 3707, Seattle, Washington 98124. These documents may be examined at the FAA, Northwest Mountain Region, 17900 Pacific Highway South, Seattle, Washington, or Seattle Aircraft Certification Office, FAA, Northwest Mountain Region, 9010 East Marginal Way South, Seattle, Washington.

This amendment becomes effective April 22, 1988.