SDR 510082703

Service difficulty report · Blade · Frchld SA227CC

Difficulty date
August 27, 2003
Submitted
September 18, 2003
Operation
Air carrier
Aircraft
N510FS
Make and model
Frchld SA227CC
Aircraft serial
CC842B
Aircraft time
9,197 hours
Engine
Garrtt TPE33111U
Engine time
9,127 hours, 10,333 cycles
Part
Blade
Part number
31026552
Part serial
980134506163
Condition
Broken
Location
Turbine Wheel
Part time
1,599 cycles
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

DURING ROUTINE MAINTENANCE IT WAS DISCOVERED THAT APPROXIMATELY .7500 OF ONE THIRD STAGE TURBINE BLADE HAD BROKEN OFF AND EXITED OUT THE TAIL PIPE CAUSING DAMAGE TO THE TAIL PIPE AND SCAVENGE PUMP COVER. THE THIRD STAGE T-WHEEL ASSEMBLY HAS A SERVICE LIFE OF 6,000 CYCLES AND HAD BEEN IN SERVICE FOR 1,599 CYCLES. ENGINE REMOVED FROM AIRCRAFT AND SENT TO MFG PHX FOR FURTHER EVALUATION AND REPAIR.