# SDR 2023FA0000357

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 7, 2023
- Submitted: July 7, 2023
- Operation: General aviation
- Aircraft: [N441HS](https://openairdocs.org/aircraft/N441HS), registered now
- Make and model: Cessna 441
- Registry model: [Cessna 441](https://openairdocs.org/model/cessna-441) (OpenAirDocs)
- Aircraft serial: 4410330
- Engine: Garrtt TPE33110N
- Engine time: 6,889 hours, 11,904 cycles
- System (JASC): [7200 · Engine (Turbine/Turboprop)](https://openairdocs.org/jasc/7200)
- Part: Bearing Race
- Part number: 701001681
- Part serial: 1915172505170
- Condition: Galled
- Location: Torque Sensor
- Part time: 423 hours
- Component: Torque Sensor, Hnywl
- Component part number: 31017263
- Stage of operation: UK
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2023FA0000357

## Discrepancy

TORQUE SENSOR BEARING INNER RACE GALLED [PN: 70100168-1, SN: 19-151725-05170, TSN: 423.1]. RESULTED IN BAD SOAP, 5 SHINY M50 PLATELETS UP TO 0.2MM REPORTED. ENGINE [TPE331-10N-512S, SN: P-77454, TSN: 6,889.1, CSN: 11,904, TSO: 2,424.0, CSO: 1,449].

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