AD 87-20-05 ACTIVE

87-20-05 PACIFIC SCIENTIFIC COMPANY: Amendment 39-5693. Applies to TSO C22f lap belt assemblies, part number 1107177 (all dash numbers), manufactured between September 1, 1984, and January 1, 1986.

Compliance required within 180 days after the effective date of this AD, unless previously accomplished.

To eliminate lap belt assemblies with belt retractor shafts which do not provide adequate strength, accomplish the following:

A. Inspect all Pacific Scientific TSO C22f lap belt assemblies, part number 1107177 (all dash numbers), in accordance with Pacific Scientific Company Safety Advisory Letter (on the Mark V Reel Lap Belt Assembly, which deals with this problem), to determine if they have part number 1106294-01 retractor shafts made of the correct material. This is determined by visual examination of the end of the shaft: If the color is gold anodize, the shaft is acceptable. If the color is a dull battleship grey anodize, the shaft must be replaced prior to further flight.

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

C. Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to ferry aircraft to a maintenance 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 information from the manufacturer may obtain copies upon request to Pacific Scientific Company, 1346 S. State College Boulevard, Anaheim, California 92803. These documents may be examined at the FAA, Northwest Mountain Region, 17900 Pacific Highway South, Seattle, Washington, or at 15000 Aviation Boulevard, Hawthorne, California.

This amendment becomes effective October 26, 1987.