# SDR QMLA2025032720042

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 25, 2025
- Submitted: March 27, 2025
- Operation: Air carrier
- Aircraft: [N901NM](https://openairdocs.org/aircraft/N901NM), registered now
- Make and model: Bell 407
- Registry model: [Bell 407](https://openairdocs.org/model/bell-helicopter-textron-canada-407) (OpenAirDocs)
- Aircraft serial: 54569
- Aircraft time: 3,852 hours, 12,194 cycles
- System (JASC): [6520 · Tail Rotor Gearbox](https://openairdocs.org/jasc/6520)
- Part: Chip Detector
- Condition: Contaminated
- Location: Tail Rotor
- Stage of operation: AA
- 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/QMLA2025032720042

## Discrepancy

T/R CHIP CAUTION LIGHT ILLUMINATED MOMENTARILY DURING FLIGHT. (10 SECONDS OR LESS) CLEANED CHIP DETECTOR. THIS AIRCRAFT HAS BEEN RETURNED TO REVENUE SERVICE, REF # MEC-007504.

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