# SDR SWIA2014120140227

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 29, 2014
- Submitted: December 4, 2014
- Operation: Air carrier
- Aircraft: [N578SW](https://openairdocs.org/aircraft/N578SW), registered now
- Make and model: Emb EMB-120ER
- Registry model: [EMB EMB-120ER](https://openairdocs.org/model/embraer-emb-120er) (OpenAirDocs)
- Aircraft serial: 120346
- Aircraft time: 33,968 hours, 47,703 cycles
- System (JASC): [6100 · Propeller System](https://openairdocs.org/jasc/6100)
- Part: Control Unit
- Condition: Malfunctioned
- Location: Rt Propeller
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWIA2014120140227

## Discrepancy

RETURNED TO DEPARTURE AFTER A RIGHT PROP OVERSPEED.  PERFORMED FIM PROCEDURE HIGH NP IAW AMM.  CND FAULT. FOUND NP OVERSPEED TO BE WITHIN LIMITS IAW AMM.  CHANGED RT PCU.

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