# SDR PN12001F00001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 14, 2001
- Submitted: July 3, 2001
- Operation: Air carrier
- Aircraft: [N6NJ](https://openairdocs.org/aircraft/N6NJ), registered now
- Make and model: Bell 206B
- Registry model: [Bell 206B](https://openairdocs.org/model/bell-206b) (OpenAirDocs)
- Aircraft serial: 4534
- System (JASC): [6520 · Tail Rotor Gearbox](https://openairdocs.org/jasc/6520)
- Part: Case
- Part number: 206040425135
- Part serial: A6462
- Condition: Misdrilled
- Location: T/R Gear Box
- Part time: 301 hours
- Stage of operation: IN
- How discovered: V
- Nature of condition: W
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/PN12001F00001

## Discrepancy

TAIL ROTOR GEAR BOX USE SAFETY WIRE HOLES DRILLED OF CENTER AND THRU WALL OF TABS.  REPLACED CASE AND DUPLEX BEARING.

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