# SDR AALA20170527007

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 26, 2017
- Submitted: May 31, 2017
- Operation: Air carrier
- Aircraft: [N929AN](https://openairdocs.org/aircraft/N929AN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 30078
- Aircraft time: 51,822 hours, 21,255 cycles
- System (JASC): [2160 · Cabin Temperature Control System](https://openairdocs.org/jasc/2160)
- Part: Shutoff Valve
- Part number: 32149721
- Part serial: 1116
- Condition: Uncontrollable
- Location: Cabin Temp
- Part time: 25,607 hours, 10,385 cycles
- 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/AALA20170527007

## Discrepancy

EMERGENCY DECLARED.  FLIGHT DIVERTED DUE TO CABIN TEMPERATURE WAS EXTREMELY HOT.   REMOVED AND REPLACED THE ZONE TEMPERATURE CONTROL TRIM AIR PRESSURE REGULATOR AND SHUTOFF VALVE ASSEMBLY IAW AMM 21-62-01.  OPS CHECKED GOOD.  AIRCRAFT WAS GROUNDED.

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