# SDR 97ZZZX4833

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 3, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N937R
- Make and model: Bell 206L-3
- Registry model: [Bell 206L-3](https://openairdocs.org/model/bell-206l-3) (OpenAirDocs)
- Aircraft serial: 51255
- System (JASC): [6220 · Main Rotor Head](https://openairdocs.org/jasc/6220)
- Part: Bearing
- Part number: 206011118001
- Condition: Defective
- Location: M/R Grip
- 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/97ZZZX4833

## Discrepancy

FOUR NEW M/R GRIP BEARINGS WERE RECEIVED FROM BELL HELICOPTER.  A MECHANIC CLEANED THEM PRIOR TO PACKING WITH GREASE AND ON ONE BEARING FOUND THAT ONE ROLLER WAS MISSING, A SECOND BEARING HAD 7 ROLLERS THAT WOULD NOT ROLL IN THE CAGE (APPROXIMATELY 1 INCH SPAN).  THIS SHOWS THE IMPORTANCE OF INSPECTING PARTS PRIOR TO INSTALLING EVEN THOUGH THEY ARE NEW.

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