# SDR AUS20040099

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 12, 2004
- Submitted: June 4, 2004
- Operation: General aviation
- Make and model: Fokker F.27MK 500
- Registry model: [Fokker F.27MK 500](https://openairdocs.org/model/fokker-f-27mk-500) (OpenAirDocs)
- Engine: Rroyce DART531
- Propeller: Rotol R1934304
- System (JASC): [7712 · Engine BMEP/Torque Indicating](https://openairdocs.org/jasc/7712)
- Part: Switch
- Part number: 02597
- Condition: Faulty
- Location: Engine
- Part time: 7,714 cycles
- Stage of operation: CR
- How discovered: O
- Nature of condition: E, J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AUS20040099

## Discrepancy

(AUS) RT ENGINE LOW TORQUE SWITCH FAULTY.   WORKSHOP INVESTIGATION FOUND THE FOLLOWING DEFECTS WITH THE SWITCH:  SLIGHT DISTORTION ON SWITCH BASE  SWITCH CAP O'RING GROOVES SCORED.   PIN TERMINAL ASSEMBLY HAD CORROSION ON PINS.

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