# SDR 98ZZZX3944

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 22, 1998
- Submitted: March 26, 2000
- Operation: General aviation
- Make and model: Israel ASTRA SPX
- Registry model: [Israel ASTRA SPX](https://openairdocs.org/model/israel-aircraft-industries-astra-spx) (OpenAirDocs)
- System (JASC): [2930 · Hydraulic Indicating System](https://openairdocs.org/jasc/2930)
- Part: Switch
- Part number: 51088
- Condition: Failed
- Location: Hydraulic System
- Stage of operation: NR
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/98ZZZX3944

## Discrepancy

THE AUXILIARY PRESSURE SWITCH, PN 51088, FAILED ON A LOCAL MISSION RESULTING IN LOSS OF THE AUXILIARY HYDRAULIC SYSTEM AND AN IN-FLIGHT EMERGENCY.  THE DIAPHRAGM INSIDE THE PRESSURE SWITCH FAILED RESULTING IN FLUID LOSS.  THE SWITCH SHOULD BE PROVIDED FOR SELF-CONTANTAINMENT IF FAILURE OCCURS.

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