# SDR AUS20040142

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 2, 2004
- Submitted: June 4, 2004
- Operation: General aviation
- Make and model: Socata TB10TOBAGO
- Engine: Lyc O360A1A
- Propeller: Hartzl HCC2YK1
- System (JASC): [7414 · Magneto/Distributor](https://openairdocs.org/jasc/7414)
- Part: Bearing
- Part number: 10400553
- Condition: Failed
- Location: Magneto
- Component: Magneto, Cont
- Component part number: D4LN3000
- Stage of operation: TX
- How discovered: O
- Nature of condition: E
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AUS20040142

## Discrepancy

(AUS) MAGNETO DRIVE SHAFT OUTER BEARING COMPLETELY DESTROYED.  BEARING HAD BEEN RUNNING DRY FOR SOME TIME.  SUSPECT MAGNETO ASSEMBLED WITHOUT GREASE IN THE BEARING.   PERSONNEL/MAINTENANCE ERROR.

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