AD/PT6T/6 - Fuel Pump Coupling - Replacement
1AD/PT6T/6 - Fuel Pump Coupling - Replacement
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COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 106 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Image unavailable in extracted text Pratt and Whitney Canada Turbine Engines - PT6T Series
AD/PT6T/6 Fuel Pump Coupling - Replacement 10/85
Applicability: PT6T-3, -3B, -6; ST6T-75, -76.
Document: 1. Pratt and Whitney Aircraft of Canada SB No. 5184; or
- AD/UAC-T/36.
Compliance: If not already accomplished the new drive coupling is to be fitted by 31 January 1981. Background: In Australia and overseas, fuel pump decouples have occurred on some models of
PT6 engines with similar fuel pump drive couplings. This Directive is issued in order to preclude pump decouples on twin PT6 engines by replacing the existing fuel pump drive coupling with a new coupling incorporating a flange to restrict axial movement.