# SDR COMA9610274

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 4, 1996
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N196CA](https://openairdocs.org/aircraft/N196CA), registered now
- Make and model: Emb EMB-120RT
- Registry model: [EMB EMB-120RT](https://openairdocs.org/model/embraer-emb-120rt) (OpenAirDocs)
- Aircraft serial: 120196
- Engine: Pwa PW118
- System (JASC): [7250 · Turbine Section](https://openairdocs.org/jasc/7250)
- Part: Bolt
- Part number: MS969611
- Condition: Broken
- Location: Rt Engine
- Stage of operation: TX
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/COMA9610274

## Discrepancy

NO NP OR TORQUE INDICATION AFTER ENGINE START.  PROPELLER WAS NOT ROTATING.  AFTER ENGINE SHUT DOWN THE PROPELLER COULD NOT BE TURNED BY HAND.  WHEN ENGINE DISASSEMBLED, A BROKEN INTERSTAGE CASE BOLT WAS FOUND TO BE JAMMING THE 1ST STAGE POWER TURBINE DISK.  BOLT AND POWER TURBINE WERE REPLACED AND ENGINE RETURNED TO SERVICE.

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