# SDR SIMA200711304

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 20, 2007
- Submitted: April 23, 2007
- Operation: Air carrier
- Aircraft: [N904AE](https://openairdocs.org/aircraft/N904AE), registered now
- Make and model: Saab 340B
- Registry model: [Saab 340B](https://openairdocs.org/model/saab-340b) (OpenAirDocs)
- Aircraft serial: 340B314
- Aircraft time: 22,926 hours, 25,019 cycles
- Engine: Ge CT79B
- Engine time: 23,095 hours, 27,787 cycles
- System (JASC): [7931 · Engine Oil Pressure](https://openairdocs.org/jasc/7931)
- Part: Pressure Switch
- Part number: 8543
- Part serial: 0764W
- Condition: Failed
- Location: Zone 400
- Part time: 22,926 hours, 25,019 cycles
- 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/SIMA200711304

## Discrepancy

LEFT ENGINE OIL PRESSURE LIGHT ILLUMINATED INFLIGHT, RETURNED TO DFW.  REMOVED AND REPLACED LEFT ENGINE AND POWER GEAR BOX OIL PRESSURE SWITCHES IAW SAAB AMM 79-30-05.  OPERATIONAL CHECK GOOD, RETURNED AIRCRAFT TO SERVICE.

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