Service difficulty report · Compressor · Cvac 340CVAC

Difficulty date
August 5, 2014
Submitted
March 12, 2015
Operation
General aviation
Make and model
Cvac 340CVAC
Aircraft time
68,357 hours
Engine
Allsn 501D13H
Part
Compressor
Part number
6846353
Condition
Malfunctioned
Location
Engine
Stage of operation
CR
How discovered
O
Nature of condition
E, R, M
Precautionary procedure
E

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

What was found

(CAN) PILOT HEARD LOUD BANGS, TWO OF THEM. LOSS OF HORSEPOWER WITH RISE IN TIT, PILOT E-HANDLED ENGINE WITH NO FURTHER ISSUES. PILOT REPORTED TIT OVER 1000C WITH RED WARNING LIGHT ON. SUSPECT COMPRESSOR BEARING FALURE - METAL FOUND EJECTING FROM FORWARD TURBINE BEARING SUPPORT BREATHER HOLES (THE CUT OUTS FOUND AROUND THE THERMOCOUPLES).