# SDR AC2A2020012483901

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 18, 2020
- Submitted: January 24, 2020
- Operation: Air carrier
- Aircraft: [N139FW](https://openairdocs.org/aircraft/N139FW), registered now
- Make and model: Agusta AB139
- Registry model: [Agusta AB139](https://openairdocs.org/model/agusta-ab139) (OpenAirDocs)
- Aircraft serial: 31022
- Aircraft time: 7,031 hours, 14,637 cycles
- System (JASC): [6340 · Rotor Drive Indicating System](https://openairdocs.org/jasc/6340)
- Part: Ring
- Condition: Unstaked
- Location: Chip Detector
- Part time: 5,182 hours, 6,113 cycles
- Component: Gearbox, Agusta
- Component part number: 3G6320A00134
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AC2A2020012483901

## Discrepancy

DURING DAILY INSPECTION, NOTICED RIGHT SIDE MAIN GEARBOX CHIP DETECTOR NOT FULLY ENGAGED.  UPON INVESTIGATION, FOUND RETENTION RING FOR CHIP DETECTOR HAD BECOME UN-STAKED FROM CHIP DETECTOR BODY.

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