# SDR 96ZZZX61

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 6, 1995
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N1851Y](https://openairdocs.org/aircraft/N1851Y), registered now
- Make and model: Cessna 172C
- Registry model: [Cessna 172C](https://openairdocs.org/model/cessna-172c) (OpenAirDocs)
- Aircraft serial: 17249451
- Engine: Cont O300C
- System (JASC): [7414 · Magneto/Distributor](https://openairdocs.org/jasc/7414)
- Part: Magneto
- Part number: 105136539
- Condition: Bearing Loose
- Location: Front Housing
- Part time: 448 hours
- Component: S6LN21
- 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/96ZZZX61

## Discrepancy

TIME SINCE MAGNETO FACTORY REBUILT, 448.4 HOURS.  DURING INSPECTION (500-HOURS), DISCOVERED FRONT BEARING RACE WAS LOOSE IN FRONT HOUSING.  NOT APPARENT UNTIL WIPED GREASE OFF TO REPLACE WITH NEW GREASE.  SUSPECT CAUSE:  MAXIMUM TOLERANCE FIT WHEN ASSEMBLED AT FACTORY REBUILD.

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