# SDR 99ZZZX1697

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 19, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N57731
- Make and model: Snias AS350D1
- Aircraft serial: 1434
- System (JASC): [6510 · Tail Rotor Drive Shaft](https://openairdocs.org/jasc/6510)
- Part: Shaft
- Part number: 350A34011007
- Condition: Mismanufactured
- Location: Tail Rotor
- Stage of operation: IN
- Nature of condition: W
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/99ZZZX1697

## Discrepancy

TAIL ROTOR SHAFT REJECTED NEW OUT-OF-BOX.  SHAFT WOULD NOT BALANCE.  .006 INCH OUT OF ROUND FORWARD OF NR 6 BEARING.  REPLACED WITH NEW UNIT, CORRECTED PROBLEM.

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