7 ADs indexed for United Aircraft of Canada aircraft.
UNITED AIRCRAFT OF CANADA LIMITED and PRATT & WHITNEY AIRCRAFT Model PT6A-6, -6A, -6B, -6/C20, -20, -20A, -20B, -27, -28, and -34 Series Engines
Unsafe Condition: Gearbox deterioration which could result in an engine failure.
Why matched: UNITED AIRCRAFT OF CANADA LIMITED and PRATT & WHITNEY AIRCRAFT Model PT6A-6, -6A, -6B, -6/C20, -20, -20A, -20B, -27, -28, and -34 Series Engines
Airworthiness Directives; UNITED AIRCRAFT OF CANADA LIMITED: Auxiliary Power Unit Model ST6L-73
Unsafe Condition: Leakage of the Sundstrand Aviation 025277 series fuel pump without the part number 5002557 injector cap and screen assembly.
Why matched: Airworthiness Directives; UNITED AIRCRAFT OF CANADA LIMITED: Auxiliary Power Unit Model ST6L-73
UNITED AIRCRAFT OF CANADA LIMITED Model PT6T-3 and PT6T-6 Series Engines
Unsafe Condition: Leakage of the Sundstrand Aviation 025277 series fuel pump without the part number 5002557 injector cap and screen assembly.
Why matched: UNITED AIRCRAFT OF CANADA LIMITED Model PT6T-3 and PT6T-6 Series Engines
PRATT & WHITNEY AIRCRAFT and UNITED AIRCRAFT OF CANADA, LIMITED Model JT15D-1 and JT15D-4 Engines
Unsafe Condition: Fuel leaks due to possible interference between the fuel outlet housing (P/N 3240082) and the fuel control main body (P/N 3240451).
Why matched: PRATT & WHITNEY AIRCRAFT and UNITED AIRCRAFT OF CANADA, LIMITED Model JT15D-1 and JT15D-4 Engines
Airworthiness Directives; WOODWARD: Applies to Woodward Governor Company Primary Turbo Propeller Governors Mounted on United Aircraft of Canada PT6A Series Engines
Unsafe Condition: Failure of the lock pitch solenoid valve or autofeathering solenoid valve due to insufficient safety wire security on coil retaining screws could result in uncontrolled feathering.
Why matched: Airworthiness Directives; WOODWARD: Applies to Woodward Governor Company Primary Turbo Propeller Governors Mounted on United Aircraft of Canada PT6A Series Engines
UNITED AIRCRAFT OF CANADA, LIMITED Model PT6 Series Engines
Unsafe Condition: Disengagement of the fuel pump input coupling from the engine gearbox
Why matched: UNITED AIRCRAFT OF CANADA, LIMITED Model PT6 Series Engines
UNITED AIRCRAFT of CANADA, LIMITED Models PT6A-6B and PT6A-20 Engines
Unsafe Condition: Failure of the propeller to reverse or immediate reversing upon selection of reverse mode due to insufficient wall thickness in teleflex reversing control cable terminals P/N's 3010175 and 30101495.
Why matched: UNITED AIRCRAFT of CANADA, LIMITED Models PT6A-6B and PT6A-20 Engines