AD 87-16-05 ACTIVE

87-16-05 LOCKHEED-CALIFORNIA COMPANY: Amendment 39-5687. Applies to Lockheed Model L-188A and L-188C airplanes, certificated in any category. Compliance required as indicated, unless previously accomplished.

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

A. Within one year after the effective date of this AD, incorporate a revision into the FAA-approved maintenance inspection program which provides no less than the requirements specified for the structurally significant details listed in Section III C. of Lockheed Report No. LR29428, dated January 16, 1984, and Revision A, dated May 14, 1986, or later revision approved by the Manager, Los Angeles Aircraft Certification Office, FAA, Northwest Mountain Region.

B. Cracks found in the structurally significant details as a result of the supplemental inspections required by paragraph A., above, 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 the airplane to a base to accomplish the requirements of this AD.

D. Alternate means of compliance which provide an acceptable level of safety may be used when approved by the Manager, Los Angeles Aircraft Certification Office, FAA, Northwest Mountain Region.

All persons affected by this directive who have not already received the appropriate service information from the manufacturer may obtain copies upon request to Lockheed-California Company, P.O. Box 551, Burbank, California 91520, Attention: Commercial Order Administration Dept. 65-33, U-33, B-1. These documents may be examined at the FAA, Northwest Mountain Region, 17900 Pacific Highway South, Seattle, Washington, or the Los Angeles Aircraft Certification Office, 4344 Donald Douglas Drive, Long Beach, California.

This Amendment becomes effective August 31, 1987.