SDR CA021120003

Service difficulty report · Blade

Difficulty date: November 6, 2002
Submitted: December 2, 2002
Operation: Air carrier
Engine: Pwa PT6A67D
System (JASC): 7250 · Turbine Section
Part: Blade
Condition: Failed
Location: Engine
Part time: 15,459 hours, 20,701 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

(CAN) A PRIMARY FAILURE OF ONE OR MORE 2ND STAGE PT BLADES. EXTENSIVE SECONDARY DAMAGE RESULTED, INCLUDING THE PT STATOR HOUSING, THE EXHAUST DUCT, BOTH FIRST & SECOND STAGE STATOR ASSEMBLIES, BOTH 1ST & 2ND STAGE PT DISK & BLADE ASSEMBLIES, THE PT SHAFT & HOUSING & BOTH NR 3 & 4 BEARINGS.ATI HAS CONCLUDED THAT THE ENGINE SUFFERED FROM 2ND STAGE POWER TURBINE BLADE FAILURE.