AD 75-02-04

75-02-04 GENERAL DYNAMICS: Amendment 39-2069. Applies to Models 22, 22M, 30, and 30A series airplanes, certificated in all categories.

Compliance required as indicated.

To reduce potential fire hazard existing in lavatory waste containers of General Dynamics Models 22, 22M, 30, and 30A series airplanes, accomplish the following:

(a) Within 300 hours time in service from the effective date of this airworthiness directive, unless already accomplished within the last 1,000 hours, perform a thorough inspection of all electrical appurtenances, including wiring, terminal boxes, switches and hot water heaters physically located within lavatory waste container areas for wear, abrasion and corrosion. Repair or replace as necessary.

(b) By December 31, 1975, unless already accomplished, modify the existing lavatory waste containers in accordance with the following General Dynamics Service Bulletins, as applicable, or later FAA-approved revisions, or in a manner approved bythe Chief, Aircraft Engineering Division, FAA Western Region:

MODEL SERVICE BULLETIN NUMBER 22 25-102A 22M 25-25A 30, 30A 25-34A

(c) Aircraft may be operated to a base for accomplishment of maintenance required under this airworthiness directive, per FAR's 21.197 and 21.199.

This amendment becomes effective January 24, 1975.