# SDR CA110112006

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 12, 2011
- Submitted: March 15, 2011
- Operation: Air carrier
- Make and model: Cessna R172K
- Registry model: [Cessna R172K](https://openairdocs.org/model/cessna-r172k) (OpenAirDocs)
- Aircraft time: 10,522 hours
- Engine: Cont IO360K
- Propeller: Mcauly 2A34C203
- System (JASC): [6111 · Propeller Blade Section](https://openairdocs.org/jasc/6111)
- Part: Bearing
- Part number: C5270
- Condition: Wrong Part
- Location: Blade Retention
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA110112006

## Discrepancy

BLADE RETENTION BEARINGS ARE MANUFACTURED AS MATCHED SETS WITH CORRESPONDING SERIAL NUMBERS.  UPON INSPECTION, IT WAS FOUND THAT 2 OF THE BEARING HALVES SERIAL NUMBERS DID NOT MATCH REQUIRING REPLACEMENT YAW MANUAL #MPC200.

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