Service difficulty report · Compressor · Cessna 425

Difficulty date
July 2, 2024
Submitted
October 22, 2024
Operation
General aviation
Aircraft
N425CL
Make and model
Cessna 425
Aircraft serial
4250206
Aircraft time
7,251 hours, 5,475 cycles
Engine
Pwa PT6A112
Engine time
7,182 hours, 5,371 cycles
Part
Compressor
Condition
Failed
Location
Rt Engine
Component
Engine · Pwa
Stage of operation
CR
How discovered
O
Nature of condition
Y, J
Precautionary procedure
A

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

ON 7-2-24, N425CL EXPERIENCE AN INFLIGHT SUDDEN SHUTDOWN OF THE RIGHT-HAND ENGINE. AS THE MECHANIC FOR THIS AIRCRAFT, I REMOVED THIS ENGINE FOR SHIPMENT TO AN OVERHAUL FACILITY. INITIAL INSPECTION SHOWS THAT THE COMPRESSOR SECTION HAD SHED MOST OF THE COMPRESSOR BLADES AND THUS SEVERELY DAMAGED THE TURBINE SECTION. THIS ENGINE WAS DEEMED UNECONOMICAL TO REPAIR AND THUS, NO FURTHER DISASSEMBLY WAS DONE TO DETERMINE WHAT EXACT COMPONENT FAILED FIRST TO CAUSE THE DAMAGE TO THIS ENGINE. AT THIS TIME, THE AIRCRAFT WAS ALSO DEEMED UNECONOMICAL TO REPAIR AND WAS SOLD TO ANOTHER COMPANY FOR PARTS.

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