# SDR 8LFA20171025001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 25, 2017
- Submitted: November 1, 2017
- Operation: Air carrier
- Aircraft: [N556LF](https://openairdocs.org/aircraft/N556LF), registered now
- Make and model: Agusta AW119MKII
- Registry model: [Agusta AW119MKII](https://openairdocs.org/model/agustawestland-philadelphia-aw119mkii) (OpenAirDocs)
- Aircraft serial: 14804
- Aircraft time: 1,629 hours
- System (JASC): [6320 · Main Rotor Gearbox](https://openairdocs.org/jasc/6320)
- Part: Gearbox
- Part number: 109040005103
- Part serial: V72
- Condition: Failed
- Location: Main Rotor
- Part time: 1,629 hours
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/8LFA20171025001

## Discrepancy

DURING A MAINTENANCE FLIGHT, MAIN GEAR BOX CHIP ILLUMINATED. AIRCRAFT RETURNED TO ORIGINAL DEPARTURE WITHOUT FURTHER INCIDENT. MAIN GEARBOX HAD .2 HOURS SINCE REPAIR.

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