# SDR HEEA0010157

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 17, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N141MA](https://openairdocs.org/aircraft/N141MA), registered now
- Make and model: Bell 407
- Registry model: [Bell 407](https://openairdocs.org/model/bell-helicopter-textron-canada-407) (OpenAirDocs)
- Aircraft serial: 53016
- System (JASC): [6322 · Rotorcraft Cooling Fan System](https://openairdocs.org/jasc/6322)
- Part: Bearing
- Part number: 406040339105
- Condition: Rough
- Location: T/R
- Part time: 626 hours
- Component: 407040303101
- 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/HEEA0010157

## Discrepancy

BEARINGS ROUGH, ALSO REPLACE 2 EACH LOCKWASHERS, P/N MS172209.  SERIAL NUMBERS OF BEARINGS REMOVED ARE D96-0770 AND D96-0762.

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