# SDR YENA20110925345

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 25, 2011
- Submitted: September 26, 2011
- Operation: Air carrier
- Aircraft: [N599JB](https://openairdocs.org/aircraft/N599JB), registered now
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 2336
- Aircraft time: 27,762 hours, 9,843 cycles
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Thermostat
- Part number: 342B050000
- Part serial: 05773
- Condition: Failed
- Location: Nr 1
- Part time: 24,196 hours, 8,594 cycles
- 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/YENA20110925345

## Discrepancy

FLT 823 JFK-SDQ, AIR TURNBACK TO JFK - CREW DECLARED EMERGENCY DUE TO NR 1 BLEED FAULT AFTER CROSSBLEED OPENED FOR NR 2 BLEED FAILURE.  REMOVED AND REPLACED ENGINE NR 1 FAN AIR VALVE CONTROL THERMOSTAT REF AMM 36-11-43.  OPS CHECK OK.

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