# SDR QMLA2025051520056

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 16, 2025
- Submitted: May 17, 2025
- Operation: Air carrier
- Aircraft: [N328CH](https://openairdocs.org/aircraft/N328CH), registered now
- Make and model: Urocop EC 130 B4
- Registry model: [Urocop EC 130 B4](https://openairdocs.org/model/eurocopter-ec-130-b4) (OpenAirDocs)
- Aircraft serial: 7328
- Aircraft time: 4,677 hours, 16,884 cycles
- Engine: Tmeca ARRIEL2B1
- Engine time: 4,677 hours, 10,831 cycles
- System (JASC): [6320 · Main Rotor Gearbox](https://openairdocs.org/jasc/6320)
- Part: Gearbox
- Condition: Warning Light
- Location: Zone 200
- 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/QMLA2025051520056

## Discrepancy

MAIN ROTOR GEAR BOX CHIP INDICATOR LIGHT ILLUMINATED IN FLIGHT. FIRST SET OF FLIGHTS FROM CHANGING OF MBG OIL FILTER YESTERDAY.

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