# SDR SIMA200109103

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 1, 2001
- Submitted: May 22, 2001
- Operation: Air carrier
- Aircraft: N305AE
- Make and model: Saab 340B
- Registry model: [Saab 340B](https://openairdocs.org/model/saab-340b) (OpenAirDocs)
- Aircraft serial: 340B305
- Propeller: Rotol R3544123F13
- System (JASC): [6140 · Propeller Indication System](https://openairdocs.org/jasc/6140)
- Part: Beta Tube
- Part number: 8147994
- Part serial: 0007025
- Condition: Failed
- Location: Lt Engine
- Stage of operation: CL
- How discovered: O
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SIMA200109103

## Discrepancy

BOS - FLT 4862 - AFTER TAKEOFF, LEFT PROP SPEED INDICATION FAILED.  ALL OTHER PARAMETERS WERE NORMAL.  AIR TURN BACK TO BOS.  REMOVED AND REPLACED BETA TUBE.  (M)

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