Service difficulty report · Compressor Wheel

Difficulty date
March 1, 2016
Submitted
April 22, 2016
Operation
General aviation
Engine
Pwa PT6A41
Part
Compressor Wheel
Part number
304929101
Condition
Cracked
Location
Engine
Part time
3,993 hours
Stage of operation
NR
How discovered
O
Nature of condition
O
Precautionary procedure
O

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

What was found

(CAN) AT OVERHAUL, THE SUBJECT CT DISK WAS FOUND WITH A CRACK ON THE BALANCE RIM ON THE DOWNSTREAM SIDE. NO CRACKS ARE ALLOWED IAW OHM 3021443 INSPECTION REQUIREMENTS. THE COMPRESSOR DISK HAS A LIFE LIMIT OF 10,000 CYCLES. NOTE: THIS OPERATOR USES ABBREVIATED CYCLE CALCULATIONS, SSN: 1504, FSN 11756 WHICH EQUALS 2529 CYCLES.