# SDR QMLA2020121420066

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 13, 2020
- Submitted: December 14, 2020
- Operation: Air carrier
- Aircraft: [N808LF](https://openairdocs.org/aircraft/N808LF), registered now
- Make and model: Snias AS350B3
- Aircraft serial: 4983
- Aircraft time: 3,288 hours, 8,593 cycles
- Engine: Tmeca ARRIEL2B1
- Engine time: 3,016 hours, 5,519 cycles
- System (JASC): [6320 · Main Rotor Gearbox](https://openairdocs.org/jasc/6320)
- Part: Chip Detector
- Part number: 704A34543020
- Condition: Fod
- Location: Main Gearbox
- Part time: 3,288 hours
- Stage of operation: AA
- How discovered: O
- Nature of condition: C, J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/QMLA2020121420066

## Discrepancy

MGB CHIP LIGHT ILLUMINATED AFTER DEPARTURE FROM BASE WITH PAT ON BOARD.  MAINTENANCE FOUND FOUR SMALL METALLIC PARTICALS (.2MM OR LESS IN SIZE), DETERMINED TO BE CATEGORY F (SWARF) MATERIAL, NOTE TSO IS 15 HOURS AT TIME OF EVENT.  PARTICALS WERE RECOVERED AND SENT TO LAB FOR ANALYSIS.  CORRECTIVE ACTION INCLUDED CLEANING THE CHIP DETECTOR, DRAINING, AND FILTERING THROUGH A FINE MESH SCREEN, THE MGB OIL, REPLACING THE MGB FILTER, REFILLING THE GEARBOX, AND COMPLETING A 10 MINUTE HOVER CHECK, WITH SATISFACTORY RESULTS.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.