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.