# SDR 2020FA0000078

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 19, 2018
- Submitted: January 22, 2020
- Operation: General aviation
- Aircraft: [N40KC](https://openairdocs.org/aircraft/N40KC), registered now
- Make and model: Mtsbsi MU2*
- Aircraft serial: 322
- Engine: Garrtt TPE331*
- Propeller: Hartzl HCB4TN5
- System (JASC): [7320 · Fuel Controlling System](https://openairdocs.org/jasc/7320)
- Part: Spur Gear
- Part number: 8968841
- Part serial: P3421C
- Condition: Fractured
- Location: Gearbox
- Component: Torque Sensor, Honeywell
- Component part number: 31017263
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2020FA0000078

## Discrepancy

GEAR PN 896884-1 APPARENTLY FRACTURED AT THE KEYWAY ALLOWING THE MAIN SHAFT DRIVE TO THE FUEL CONTROL DRIVE TRAIN TO BECOME DISENGAGED CAUSING AN UNCOMMANDED ENGINE SHUTDOWN DUE TO LACK OF FUEL.

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