AD 80-17-01

80-17-01 GOVERNMENT AIRCRAFT FACTORIES (GAF): Amendment 39-3870. Applies to Models N22B (Serial Nos. N22B-5 and up) and N24A (Serial Nos. N24A-42 and up), certificated in all categories. 7 Compliance required within the next 25 hours time in service after the effective date of this AD unless already accomplished within the last 75 hours time in service, and thereafter at intervals not to exceed 100 hours time in service from the last inspection.

To prevent possible failure of the universal joint in the rudder control torque shafts, accomplish the following:

(a) Inspect the left and right rudder control torque shaft universal joint, P/N MS20271B16, for defects, in accordance with paragraph 5 of the Government Factories Alert Service Bulletin ANMD 27-17 dated April 3, 1980, or an FAA-approved equivalent.

(b) Replace any defective universal joints, P/N MS20271B16, with a new part of the same P/N in accordance with the Service Bulletin, before further flight, except as provided in paragraph (c) of this AD.

(c) Aircraft may be flown in accordance with FAR 21.197 and FAR 21.199 to a location where this replacement can be accomplished.

(d) For the purpose of this AD, an FAA-approved equivalent may be approved by the Chief, Engineering and Manufacturing District Office, FAA, Pacific-Asia Region, Honolulu, Hawaii.

NOTE: All persons affected by this directive who have not already received the applicable Service Bulletin from the manufacturer may obtain copies upon request to the Government Aircraft Factories, 226 Lorimer Street, Port Melbourne, 3207 Victoria, Australia. These documents may also be examined at the FAA, Engineering and Manufacturing District Office, 300 Ala Moana Blvd., Room 7321, Honolulu, Hawaii 96850, or Rules Docket, Room 916, FAA, 800 Independence Avenue, S.W., Washington, D.C. 20591.

This amendment becomes effective August 18, 1980.