# SDR M7K2008F00017

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 23, 2008
- Submitted: July 17, 2008
- Operation: Air carrier
- Aircraft: [N807MH](https://openairdocs.org/aircraft/N807MH), 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: 3912
- Engine: Tmeca ARRIEL2B1
- System (JASC): [6320 · Main Rotor Gearbox](https://openairdocs.org/jasc/6320)
- Part: Pressure Sensor
- Part number: 1130021089
- Part serial: 20085
- Condition: Inoperative
- Location: Rgb
- Part time: 997 hours
- Component: Rgb
- Component part number: EC130B4
- Stage of operation: CR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/M7K2008F00017

## Discrepancy

LOW MGB OIL PRESSURE WARNING LIGHT FLICKERED IN FLIGHT WITH NO AUDIBLE WARNING. SWITCH WAS REPLACED WITH A SERVICEABLE PAR AND WITH NO FURTHER DISCREPANCY NOTED.  THIS IS TO AN UNCOMMON FAULT FOR THIS PART. SUGGEST IMPROVED DESIGN OR BETTER QC FOR INTERNAL PARTS AS PERHAPS ONLY A THIRD OF THESE SWITCHES FAIL IN SERVICE.  (K)

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