# SDR COMA9610429

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 26, 1996
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N179CA](https://openairdocs.org/aircraft/N179CA), registered now
- Make and model: Emb EMB-120RT
- Registry model: [EMB EMB-120RT](https://openairdocs.org/model/embraer-emb-120rt) (OpenAirDocs)
- Aircraft serial: 120179
- Engine: Pwa PW118
- Propeller: Hamstd 14RF9
- System (JASC): [6110 · Propeller Assembly](https://openairdocs.org/jasc/6110)
- Part: Bearing
- Part number: 8173861
- Condition: Worn
- Location: Propeller
- Part time: 1,611 hours
- Component: RFC11AA16A
- Stage of operation: IN
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/COMA9610429

## Discrepancy

PROPELLER ASSEMBLY WAS ORIGINALLY REMOVED FOR ENGINE RELATED MAINTENANCE.  INSPECTION REVEALED UNEVEN WEAR ON THE BLADE BEARING INSERT.  WEAR HAD OCCURED IN AN OVAL FASHIION AND INSERT WALL THICKNESS HAD DETERIORATED FROM ORIGINAL .100\ WITH THE THICKNESSES RANGING FROM .076\ TO .088\.  BEARINGS WERE REMOVED FROM SERVICE AND REPLACED WITH SERVICEABLE UNITS.

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