# SDR 20000731SH029

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 16, 2000
- Submitted: July 31, 2000
- Operation: General aviation
- Aircraft: [N407WH](https://openairdocs.org/aircraft/N407WH), registered now
- Make and model: Bell 407
- Registry model: [Bell 407](https://openairdocs.org/model/bell-helicopter-textron-canada-407) (OpenAirDocs)
- Aircraft serial: 532027
- System (JASC): [6510 · Tail Rotor Drive Shaft](https://openairdocs.org/jasc/6510)
- Part: Bearing
- Part number: 407340339103
- Part serial: B963199
- Condition: Rough
- Location: T/R  Driveshaft
- Part time: 387 hours
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/20000731SH029

## Discrepancy

WHILE C/W BELL A3B-407-00-35, FOUND 4 EACH BEARINGS TO BE ROUGH.  SUBMITTER STATED THESE WERE NOT THE OIL COOLER BEARINGS AS REFERENCED IN AD 2000-02-12. (X)

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