# SDR MALA060334

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 20, 2006
- Submitted: June 1, 2006
- Operation: Air carrier
- Aircraft: N443XJ
- Make and model: Saab 340B
- Registry model: [Saab 340B](https://openairdocs.org/model/saab-340b) (OpenAirDocs)
- Aircraft serial: 340B443
- Aircraft time: 18,654 hours, 20,560 cycles
- System (JASC): [6120 · Propeller Controlling System](https://openairdocs.org/jasc/6120)
- Part: Pcu
- Part number: 8210153
- Part serial: 12096466
- Condition: Malfunctioned
- Location: Lt Prop
- Stage of operation: CR
- 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/MALA060334

## Discrepancy

LT TORQUE AND LT PROP FLUCTUATING BY 5 PERCENT AND 20 RPM WHILE INFLIGHT.  AIR RETURN TO MEM.  REMOVED AND REPLACED LT PCU IAW SF340 AMM CHAPTER 61-20-05-04 AND 71-00-00.  ALL CHECKS GOOD AT THIS TIME, P/N ON/OFF 8210-153, S/N ON 11916865, S/N OFF 12096466.

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