SDR Y3AR097979

Service difficulty report · Turbine Nozzle · Clark 1000CLARK

Difficulty date
October 20, 2004
Submitted
November 15, 2004
Operation
Air carrier
Make and model
Clark 1000CLARK
Engine
Allsn 250C28B
Part
Turbine Nozzle
Part number
23031938
Part serial
X56571
Condition
Destroyed
Location
Engine
Part time
791 hours, 1,417 cycles
Stage of operation
CR
How discovered
O
Nature of condition
O
Precautionary procedure
A

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

What was found

DURING DISASSEMBLY FOUND NR 2 TURBINE NOZZLE DIAPHRAM TO BE DETACHED FROM THE NOZZLE ASSEMBLY. THIS CAUSED THE DIAPHRAM TO RUB ON BOTH THE 1ST & 2ND STAGE TURBINE WHEELS CAUSING SEVER DAMAGE TO BOTH WHEELS