AD 76-02-08

76-02-08 UNITED AIRCRAFT OF CANADA LIMITED: Amendment 39-2503. Applies to all PT6T-3 and PT6T-6 series turboshaft engines. Compliance required as indicated unless previously accomplished. To preclude leakage of the Sundstrand Aviation 025277 series fuel pump without the part number 5002557 injector cap and screen assembly, accomplish the following: (a) Within the next 25 hours in service after the effective date of this A.D., unless previously accomplished, inspect the fuel pump in accordance with paragraph 2 Accomplishment Instructions detailed in Pratt & Whitney Aircraft of Canada Limited Special Instruction No. 5-75 dated August 12, 1975, or approved equivalent inspection. (b) Within the next 250 hours in service after the effective date of this A.D., unless previously accomplished, install part number 5002557, injector cap and screen assembly, in accordance with paragraph 2 Accomplishment Instructions, Pratt & Whitney Aircraft of Canada Limited Engine Service BulletinNo. 5111 dated September 4, 1975 or approved equivalent alteration. The aircraft may be flown in accordance with FAR 21.197 and 21.199 to a base where the inspection or alteration can be accomplished. Upon submission of substantiating data, through an FAA Maintenance Inspector, the Chief, Engineering and Manufacturing Branch, FAA Eastern Region, may adjust the repetitive inspection times specified in this A.D. An equivalent alteration or inspection must be approved by the Chief, Engineering and Manufacturing Branch of the Eastern Region of the FAA. This amendment is effective February 5, 1976.