Service difficulty report · Combustion Liner

Difficulty date
November 5, 2013
Submitted
November 5, 2013
Operation
General aviation
Engine
Allsn 250C30
Engine time
12,088 hours, 18,663 cycles
Part
Combustion Liner
Part number
23066675
Part serial
CAL2872
Condition
Failed
Location
Engine
Stage of operation
IN
How discovered
V
Nature of condition
E
Precautionary procedure
K

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

What was found

THE COMBUSTION LINER FAILED. THE TABS HOLDING THE AFT OUTER SKIRT FAILED, ALLOWING THE SKIRT TO SEPARATE, AND 2 OF THE TABS WERE INGESTED IN THE TURBINE CAUSING SERIOUS DAMAGE. ALL 4 TURBINE WHEELS HAVE FOD AND ARE SCRAP. THE TURBINE HAS APPROXIMATELY 800 HOURS SINCE LAST O/H.