AD 84-09-07

84-09-07 MAULE AEROSPACE TECHNOLOGY (Formerly Maule Aircraft Corp.): Amendment 39-4860. Applies to Models M-4 and M-5 Series airplanes equipped with plug type drain fittings in the main and auxiliary fuel tanks certificated in any category.

Compliance: Required within the next 50 hours time-in-service, unless already accomplished.

To provide a convenient means to drain fuel system water contamination, accomplish the following:

(a) Replace all plug type drain fittings in the main and auxiliary fuel tanks with quick drain valves in accordance with Maule Service Bulletin No. 5 and Maule Service Letter No. 32.

NOTE: Some airplanes are not equipped with Auxiliary fuel tanks.

(b) Install the following, or later FAA approved Flight Manual revisions or supplements as applicable in the airplane.

M-4 AFM Rev. 2 M-5-180C Rev. D M-4-180C Rev. A M-5-210TC Rev. B M-4-220C Rev. 5 M-5-235C Rev. A (AFM dated 12 Aug. 81) M-5-210C Rev. B M-5-235C AFM(dated 6 April 1976) Supplement No. 13 M-5-220C Rev. A M-4-210 & M-4-210C AFM Supplement No. 10

(c) Airplanes may be flown in accordance with 21.197 to a location where this AD may be accomplished.

(d) An equivalent method of compliance with this AD may be used if approved by the Manager, Atlanta Aircraft Certification Office, ACE-115A, 1075 Inner Loop Road, College Park, Georgia 30337.

This amendment becomes effective on May 12, 1984.