SDR 2013F00141

Service difficulty report · Support

Difficulty date
July 3, 2013
Submitted
July 9, 2013
Operation
General aviation
Filed by
8MHR895B
Keystone Turbine Services, LLC
Engine
Allsn 250C30P
Engine time
730 hours
Part
Support
Part number
M25010053
Part serial
XR11200
Condition
Fractured
Location
Bearing Bore
Part time
730 hours
Component
Compressor · Rroyce
Component part number
23051643
Stage of operation
IN
How discovered
V
Nature of condition
O
Precautionary procedure
K

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

What was found

ENGINE WAS REMOVED FROM THE ACFT DUE TO A CHIP LIGHT. ON REMOVAL OF THE COMPRESSOR FOUND THAT THE REAR SUPPORT WAS THE SOURCE OF THE METAL. THE AREA OF THE REAR SUPPORT ADJACENT TO THE NR 2 BEARING RETAINING RING GROOVE WAS FOUND TO BE FRACTURED WITH PIECES MISSING ON EITHER SIDE OF ONE OF THE PULLER SLOTS.