# SDR AALA20090714MIA01

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 14, 2009
- Submitted: July 23, 2009
- Operation: Air carrier
- Aircraft: [N634AA](https://openairdocs.org/aircraft/N634AA), registered now
- Make and model: Boeing 757223
- Aircraft serial: 24592
- Aircraft time: 59,802 hours, 20,964 cycles
- System (JASC): [2932 · Hydraulic Pressure Sensor](https://openairdocs.org/jasc/2932)
- Part: Pressure Switch
- Condition: Defective
- Location: Hydraulic Sys
- Stage of operation: TO
- 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/AALA20090714MIA01

## Discrepancy

MIA - RIGHT ENGINE HYDRAULIC PRESSURE INDICATION ERRATIC.  EMERGENCY DECLARED RETURNED MIA WITHOUT INCIDENT.  REMOVED AND REPLACED LEFT HYDRAULIC SYSTEM PRESSURE SWITCH.  SYSTEM GROUND CHECK NORMAL OPERATION.

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