AD 86-19-01

86-19-01 BOEING: Amendment 39-5394. Applies to Model 747-100SR series airplanes listed in Section 3.0 of Boeing Document No. D6-35655 "Supplemental Structural Inspection Document" (SSID), approved March 22, 1986, certificated in any category. Compliance is required as indicated in the body of the AD.

To ensure the continuing structural integrity of these airplanes, accomplish the following, unless already accomplished:

A. Within one year after the effective date of the AD, incorporate a revision into the FAA-approved maintenance inspection program which provides no less than the required damage tolerance rating (DTR) for each Structural Significant Item (SSI) listed in Boeing Document D6-35655, approved March 22, 1986, or later FAA-approved revisions. The required DTR value for each SSI is listed in the document. The revision to the maintenance program must include and be implemented in accordance with the procedures in Sections 5.0 and 6.0 of the SSID.

B. Cracked structure must be repaired before further flight in accordance with an FAA-approved method.

C. Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate airplanes to a base for the accomplishment of inspections and/or modifications required by this AD.

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, Seattle Aircraft Certification Office, FAA, Northwest Mountain Region.

E. Operators who have acceptably incorporated Boeing Document No. D6-35655, approved March 22, 1986, or later FAA-approved revisions, into their approved maintenance program are exempt from 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 98124-2207.These documents may be examined at the FAA, Northwest Mountain Region, 17900 Pacific Highway South, Seattle, Washington, or the Seattle Aircraft Certification Office, 9010 East Marginal Way South, Seattle, Washington.

This amendment becomes effective September 22, 1986.