# SDR 98ZZZX1681

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 27, 1998
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N398MA](https://openairdocs.org/aircraft/N398MA), registered now
- Make and model: Snias AS350BA
- Aircraft serial: 1856
- System (JASC): [6230 · Main Rotor Mast/Swashplate](https://openairdocs.org/jasc/6230)
- Part: Bearing
- Part number: L522110V
- Condition: Deteriorated
- Location: M/R Shaft
- Part time: 2,774 hours
- Component: 350A37000305
- 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/98ZZZX1681

## Discrepancy

LOWER MAST BEARING OUTER RACE DETERIORATING, MAKING METAL.  SUBMITTER STATED ENSURE CORRECT MAST BEARING SHIMMING.

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