21 December-20 January 2020

381
Garrett TPE331: cracked exhaust duct. (612054604)
TURBINE ENGINE
LYCOMING LTS101 850B2 –  ATA 7314 ENGINE FUEL PUMP  – COUPLING – FAILED. DR 612054583
Engine started accelerating beyond normal operating parameters.
Root cause: Plastic splined coupling between fuel pump and FCU failed.
Part replaced with new coupling.
PRATT AND WHITNEY PT6A 42 –  ATA 7321 FUEL CONTROL/TURBINE ENGINES – O RING – Fuel leak. DR 612054596
After departure, crew noted that there was reduced power on one side. ATB to departing base executed.
Root cause: Fuel leak from forward RH engine cowl tracing to a split O ring on fuel nozzle transfer tube.
O ring replaced. Leak checks and ground runs carried out as per EMM.
PRATT AND WHITNEY PW120 A –  ATA 7321 FUEL CONTROL/TURBINE ENGINES – TURBINE ENGINE – SERVICEABLE. DR 612054600
Shortly after take-off, left hand engine reverted to manual mode. Crew elected to return to departing base due no maintenance support at site.

Fault could not be reproduced, Electrical harnesses inspected; ECU’s transposed for further troubleshooting.

IAE V2527 A5 –  ATA 7830 THRUST REVERSER – DUCT – DAMAGED. DR 612054601
Blocker door #1 ENG O/B T/Rev attach lugs failed allowing door to impact inner Reverser translating sleeve.
GARRETT TPE331 12 –  ATA 7810 ENGINE COLLECTOR/TAILPIPE/NOZZLE  – DUCT – CRACKED. DR 612054604
During scheduled zonal Inspection, a crack was noted on the exhaust duct. The exhaust duct was replaced.

 

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