# SDR USAA2011101900012

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 18, 2011
- Submitted: October 19, 2011
- Operation: Air carrier
- Aircraft: [N659AW](https://openairdocs.org/aircraft/N659AW), registered now
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 1166
- Aircraft time: 43,411 hours, 16,155 cycles
- System (JASC): [2930 · Hydraulic Indicating System](https://openairdocs.org/jasc/2930)
- Part: Switch
- Part number: TM1131
- Condition: Defective
- Location: Hydraulic Sys
- Stage of operation: DE
- How discovered: O
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/USAA2011101900012

## Discrepancy

CAPTAIN REPORTED YELLOW HYDRAULIC RESERVOIR OVERHEAT PRIOR TO DESCENT.  YELLOW PUMP OPERATION WAS RESTORED PRIOR TO LANDING.  AN EMERGENCY WAS DECLARED - AIRCRAFT LANDED AND PROCEEDED TO GATE WITH NO FURTHER ISSUES.  MAINTENANCE REMOVED AND REPLACED YELLOW SYSTEM TEMPERATURE SWITCH IAW AIRBUS MAINTENANCE MANUAL 29-33-11.

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