# SDR 97ZZZX4713

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 21, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Make and model: Bolkms BK117A3
- System (JASC): [6320 · Main Rotor Gearbox](https://openairdocs.org/jasc/6320)
- Part: Output Shaft
- Part number: 4639311005
- Condition: Mismanufactured
- Location: M/R Gearbox
- 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/97ZZZX4713

## Discrepancy

OUTPUT SHAFT REJECTED NEW OUT-OF-BOX.  SILVER PLATING ON INNER SHAFT SURFACE NOT PROPERLY APPLIED.  REPLACED WITH NEW UNIT, CORRECTED PROBLEM.

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