# SDR MALA010698

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 14, 2001
- Submitted: September 19, 2001
- Operation: Air carrier
- Aircraft: N452XJ
- Make and model: Saab 340B
- Registry model: [Saab 340B](https://openairdocs.org/model/saab-340b) (OpenAirDocs)
- Aircraft serial: 340B452
- Propeller: Rotol R3544123F13
- System (JASC): [6140 · Propeller Indication System](https://openairdocs.org/jasc/6140)
- Part: Indicator
- Part number: 522742
- Part serial: 0387128
- Condition: Erratic
- Location: Cockpit
- 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/MALA010698

## Discrepancy

DURING FLIGHT 2933, LT PROP RPM INDICATION ERRATIC.  INDICATION VARIES FROM ACTUAL RPM AND ZERO INTERMITTENTLY.  AIR TURNBACK TO MSP.  MAINTENANCE REMOVED AND REPLACED LT PROP INDICATOR P/N 522742, S/N ON 0387128, S/N OFF 9802872 IAW AMM 61-40-05-2.  OPS CHECK GOOD.

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