# SDR CA980113002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 1, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Make and model: Bell 212
- Registry model: [Bell 212](https://openairdocs.org/model/bell-212) (OpenAirDocs)
- Engine: Pwa PT6T3
- System (JASC): [7250 · Turbine Section](https://openairdocs.org/jasc/7250)
- Part: Turbine Wheel
- Condition: Damaged
- Location: Nr 2 Engine
- Stage of operation: CR
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA980113002

## Discrepancy

(CAN) AT 6,000 FEET IN CRUISE AT 80 PERCENT TORQUE, NR 2 ENGINE MADE A LOUD BANG WITH A GRINDING SOUND -'POOF SOUND'- THEN A CHIP DETECTOR LIGHT.  THERE WAS NO PREVIOUS WARNING.  PILOT REDUCED NR 2 ENGINE POWER TO IDLE AND LANDED ON A FROZEN LAKE.  POST-FLIGHT INSP FOUND NO EXTERNAL DAMAGE OR OIL LEAKS.   A BOLT HEAD (POSSIBLY A MS9488 OR MS9489) FOUND IN EXHAUST STACK.  THE POWER TURBINE WHEEL WAS FOUND HEAVILY DAMAGED.  FWD CHIP DETECTOR HAD SMALL AMOUNTS OF FERROUS METAL AND AFT CHIP DETECTOR WAS LOADED.

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