# SDR QMLA2020092820049

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 24, 2020
- Submitted: September 28, 2020
- Operation: Air carrier
- Aircraft: [N629AM](https://openairdocs.org/aircraft/N629AM), registered now
- Make and model: Snias AS350B3
- Aircraft serial: 3941
- Aircraft time: 4,882 hours, 14,978 cycles
- Engine: Tmeca ARRIEL2B1
- Engine time: 4,882 hours, 7,263 cycles
- System (JASC): [7200 · Engine (Turbine/Turboprop)](https://openairdocs.org/jasc/7200)
- Part: Starter Gen
- Part number: 150SG122Q4
- Part serial: 10758
- Condition: Malfunctioned
- Location: Nr 1
- Part time: 1,189 hours, 3,769 cycles
- Stage of operation: NR
- How discovered: V
- Nature of condition: H
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/QMLA2020092820049

## Discrepancy

ON SEPTEMBER 24TH 2020, AT APPROXIMATELY 15:30, THE GENERATOR ON AIRCRAFT N629AM FAILED IN FLIGHT.  THE AIRCRAFT LOST ELECTRICAL POWER AND THE RADIOS AND VEMD WENT OFFLINE.  THE PILOT EXECUTED A PRECAUTIONARY LANDING AT AN OFF AIRPORT LOCATION.  AFTER LANDING, THE ENGINE WOULD NOT SHUT DOWN SO THE EMERGENCY FUEL CUT-OFF HAD TO BE ACTUATED.  UPON FURTHER INVESTIGATION IT WAS FOUND THAT THE GENERATOR HAD FAILED IN FLIGHT AND PORTION OF THE COMMUTATOR AND BRUSHES HAD COME APART.

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