Service difficulty report · Blade

Difficulty date
February 5, 1997
Submitted
March 26, 2000
Operation
General aviation
Engine
Pwa PW123
Part
Blade
Part number
310750201
Condition
Fractured
Location
Lp Turbine
Part time
6,094 hours
Stage of operation
NR
Nature of condition
O
Precautionary procedure
O

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

What was found

(CAN) THE ENGINE WAS SENT FOR REPAIR AFTER THE OPERATOR REPORTED AN LP TURBINE BLADE FAILURE. DISASSEMBLY OF THE ENGINE FOUND THE LP TURBINE BLADE FAILURE WAS CAUSED BY CORROSION IN THE CORE POCKETS OF 3 LP TURBINE BLADES. SECONDARY DAMAGE FROM THE FAILURE CAUSED DAMAGE TO THE 1ST AND 2ND STAGE PT BLADES; THE 1ST AND 2ND STAGE PT STATORS; THE REMAINING LP TURBINE BLADES; THE LP SHROUD SEGMENTS AND THE LP STATOR. THE #3 AND #6 BEARINGS WERE SCRAPPED AS A PRECAUTION.