AD 83-15-04

83-15-04 PARTENAVIA COSTRUZIONI AERONAUTICHE S.p.A.: Amendment 39- 4695. Applies to Models P68, P68B, P68C, P68C-TC and P68 Observer (all serial numbers (S/N) up to S/N 289, excluding S/Ns 234, 256, 259, 269, and 288) airplanes certificated in any category.

Compliance: Required within 50 hours time-in-service from the effective date of this AD, unless already accomplished.

To preclude loosening of the stabilator support brackets, accomplish the following:

a) Check and correct, if necessary, the torque of the AN4-6A bolts which attach the horizontal stabilator torque tube support brackets to the fuselage frame (ref. Parts Catalog P68B, Figure No. 5.2, Item No. 33; or Parts Catalog P68C, Figure No. 5.3, Item No. 36). NOTE: The correct torque value for these bolts is 0.9 to 0.950 Kpm; 78 to 83 in. lbs.

b) Aircraft may be flown in accordance with Federal Aviation Regulation 21.197 to a location where this AD can be accomplished.

c) An equivalent method of compliance with this AD, if used, must be approved by the Manager, Aircraft Certification Staff, AEU-100, Europe, Africa, and Middle East Office, FAA, c/o American Embassy, 1000 Brussels, Belgium.

Partenavia Service Bulletin No. 57 dated March 7, 1983, covers the subject matter of this AD.

This amendment becomes effective on August 4, 1983.