Service difficulty report · Combustion Liner · Aerosp ATR72

Difficulty date
January 5, 1999
Submitted
March 26, 2000
Operation
General aviation
Make and model
Aerosp ATR72
Engine
Pwa PW127
Part
Combustion Liner
Part number
311237901
Condition
Damaged
Location
Engine
Part time
10,619 hours
Stage of operation
IN
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

(CAN) THE ENGINE WAS REMOVED FROM WING AFTER THE OPERATOR FOUND DAMAGE TO THE OUTER COMBUSTION LINER AND THE HP SHROUD SEGMENTS. DISASSEMBLY OF THE ENGINE FOUND THE OUTER COMBUSTION LINER HAD SEVERAL SECTIONS OF THE CENTER COOLING RING MISSING AND CLEAR EVIDENCE THAT THE BALANCE RING WAS POORLY ATTACHED TO THE BASIC OUTER LINER. THIS LINER WAS INSTALLED NEW AT THE LAST OVERHAUL. UNFORTUNATELY, THE DAMAGE TO THE LINER WAS SO SEVERE IT WAS NO LONGER REPAIRABLE. PART TC: 11,748.