# SDR 2017FA0000005

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 5, 2017
- Submitted: January 6, 2017
- Operation: Air carrier
- Aircraft: [N454JH](https://openairdocs.org/aircraft/N454JH), registered now
- Make and model: Hughes 369E
- Registry model: [Hughes 369E](https://openairdocs.org/model/hughes-helicopters-369e) (OpenAirDocs)
- Aircraft serial: 0454E
- Aircraft time: 12,693 hours, 35,040 cycles
- System (JASC): [6320 · Main Rotor Gearbox](https://openairdocs.org/jasc/6320)
- Part: Gearbox
- Part number: 369D21500507
- Part serial: 0022220011
- Condition: Excess Play
- Location: Main Rotor
- Stage of operation: IN
- How discovered: C
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2017FA0000005

## Discrepancy

DURING MAINTENANCE A MECHANIC DISCOVERED EXCESSIVE GEARPLAY IN THE MAIN ROTOR TRANSMISSION. THE UNIT WAS REMOVED FOR REPAIR

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