# SDR HEEA968654

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 10, 1996
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N54191
- Make and model: Bolkms BO105S
- Aircraft serial: S804
- System (JASC): [6320 · Main Rotor Gearbox](https://openairdocs.org/jasc/6320)
- Part: Center Case
- Part number: 4638201003
- Condition: Bore Worn
- Location: M/R Xmsn
- 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/HEEA968654

## Discrepancy

CENTER CASE OUTPUT BORE WORN, CORROSION ON BASE FLANGE AND WEAR STEP ON SUPPORT PINS AND NOZZLE RING SURFACE.

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