# SDR UALA2009111603572

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 15, 2009
- Submitted: November 17, 2009
- Operation: Air carrier
- Aircraft: [N428UA](https://openairdocs.org/aircraft/N428UA), registered now
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 523
- Aircraft time: 50,952 hours, 18,417 cycles
- Engine: Iae V2527A5
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Thermostat
- Part number: 341E020000
- Part serial: 2286
- Condition: Faulty
- Location: Nr 1
- Stage of operation: CR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2009111603572

## Discrepancy

BLEED AIR LOSS, FLT DIVERTED.  RE-ACTIVATED NR 2 ENG PRV AND DE-ACTIVATED HP VALVE.  REPLACED NR 1 ENG FAN AIR VALVE CONTROL THERMOSTAT.  REPLACED SOLENOID.  BLEED CHECK COMPLETED ALL RUNS COMPLETED SATISFACTORY.  ACCOMPLISHED HEALTH CHECK FROM PAGE 1 TO 14 ALL CHECKS PASSED.  ACCOMPLISHED ENG RUN OF NR 1 & NR 2 ENGS, RAN BOTH PACKS USING 1 ENG AT A TIME. PACKS OPERATED NORMAL, NO FLUX OR ABNORMALITIES NOTED.

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