Service difficulty report · Shaft · Piper PA31350

Difficulty date
December 30, 2009
Submitted
January 19, 2010
Operation
General aviation
Make and model
Piper PA31350
Aircraft time
21,872 hours
Engine
Lyc LTIO540J2BD
Part
Shaft
Condition
Seized
Location
Turbocharger
Stage of operation
CR
How discovered
O
Nature of condition
R, J
Precautionary procedure
E

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

What was found

(CAN) ENGINE SHUT DOWN DURING FLIGHT DUE ENGINE POWER (MANIFOLD PRESSURE) LOSS. REF: WSDR NR 20100101004 FOUND ALL TURBO COMPRESSOR BLADES DAMAGED CONSISTENT WITH FOD AND TWO BLADES WITH MISSING LE MATERIAL. COMPRESSOR SHAFT FOUND PARTIALLY SIEZED (VERY DIFFICULT TO ROTATE). ONE BLADE HAS APPROX 1/4 IN BY 1/4 IN OF O/B LE MATERIAL MISSING AND SECOND BLADE 1/2 IN BY 1/4 IN O/B LE MATERIAL MISSING. COMPRESSOR HOUSING SCROLL ALSO INDICATES BLADE LE CONTACT FOR APPROX 360 DEG OF HOUSING CIRCUMFERENCE AND COMPRESSOR SHAFT HAS EXCESSIVE RADIAL PLAY. THIS TURBOCHARGER IS A KELLY AEROSPACE OVERHAULED UNIT - 714 HRS. TSO. (TC NR 20100101005)

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