# SDR AALA20150501014

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 1, 2015
- Submitted: May 5, 2015
- Operation: Air carrier
- Aircraft: [N904AN](https://openairdocs.org/aircraft/N904AN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 29506
- Aircraft time: 47,933 hours, 19,351 cycles
- System (JASC): [2110 · Cabin Compressor System](https://openairdocs.org/jasc/2110)
- Part: Sensor
- Part number: 1296663
- Condition: Faulty
- Location: Precooler
- Stage of operation: CL
- 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/AALA20150501014

## Discrepancy

DURING CLIMB THE RIGHT PACK BLEED FAULTED AND WOULDN"T RESET.  EMERGENCY DECLARED AND FLIGHT LANDED WITHOUT INCIDENT.  REMOVED AND REPLACED RIGHT ENGINE PRECOOLER CONTROL VALVE SENSOR PER BOEING 737 AMM 36-12-03.

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