SDR CA010529002

Service difficulty report · Combustion Liner · Pilats PC1245

Difficulty date: May 4, 2001
Submitted: June 18, 2001
Operation: Air carrier
Make and model: Pilats PC1245
Aircraft time: 2,891 hours
Engine: Pwa PT6A67B
Propeller: Hartzl HCE4A3D
System (JASC): 7240 · Turbine Engine Combustion Section
Part: Combustion Liner
Condition: Failed
Location: Ceramic Coating
Part time: 3,561 hours, 3,847 cycles
Component: Combustion Liner · Pwa · PT6A67B
Stage of operation: DE
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) SPARKS OBSERVED COMING FROM ENGINE EXHAUST STACKS DURING APPROACH. ENGINE BORESCOPE INSPECTION CARRIED OUT WITH ASSISTANCE OF PRATT & WHITNEY FIELD REP. EVIDENCE OF CERAMIC COATING IMPACT ON TURBINE BLADES. SUSPECT SPARKS WERE CAUSED BY CERAMIC COATING BREAKING AWAY FROM COMBUSTION LINER. NO OTHER DEFECTS FOUND. . .