# SDR 99ZZZX1250

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 25, 1999
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: N577E
- Make and model: Bell 206L-1
- Registry model: [Bell 206L-1](https://openairdocs.org/model/bell-helicopter-textron-206l-1) (OpenAirDocs)
- Aircraft serial: 45577
- System (JASC): [6320 · Main Rotor Gearbox](https://openairdocs.org/jasc/6320)
- Part: Retainer
- Part number: 204040129001
- Condition: Broken
- Location: M/R Gearbox
- Part time: 13,067 hours
- Component: 206040004111
- 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/99ZZZX1250

## Discrepancy

UPON DISASSEMBLYING TRANSMISSION FOR INSPECTION REMOVING SCREEN ASSY FOR CHIPS OF RETAINER ASSY IN SCREEN, LOOKED OVER PLANETARY, FOUND 1 EACH GEAR ASSY RETAINER MISSING PIECES.  UPGRADE USING NEW HOUSING ASSY, P/N 214-040-515-001.

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