# SDR MALA040417

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 26, 2004
- Submitted: June 1, 2004
- Operation: Air carrier
- Aircraft: N106XJ
- Make and model: Saab SF340A
- Registry model: [Saab SF340A](https://openairdocs.org/model/saab-scania-sf340a) (OpenAirDocs)
- Aircraft serial: 340A106
- Aircraft time: 31,082 hours, 32,739 cycles
- System (JASC): [2932 · Hydraulic Pressure Sensor](https://openairdocs.org/jasc/2932)
- Part: Pressure Switch
- Condition: Inoperative
- Location: Hyd System
- Stage of operation: CL
- How discovered: O
- Nature of condition: N
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/MALA040417

## Discrepancy

HYDRAULIC LIGHT ILLUMINATED AFTER SELECTING GEAR RETRACTION.  MAIN PRESSURE DROPS TO 1800 PSI FOR 3-5 SECONDS THEN GOES UP.  AIR RETURN TO MSP.  MAINTENANCE REMOVED AND REPLACED HYDRAULIC PRESSURE SWITCH 9ML IAW SF 340 MM 29-10-45 OPS AND LEAK CHECKS GOOD ALSO REPAIRED GROUND WIRE AT MAIN HYDRAULIC PRESSURE TRANSDUCER CONNECTOR PLUG.  ALL OPS CHECKS GOOD.

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