# SDR AALA20111209TUL08

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 9, 2011
- Submitted: December 21, 2011
- Operation: Air carrier
- Aircraft: [N972TW](https://openairdocs.org/aircraft/N972TW), registered now
- Make and model: Doug DC-9-83
- Registry model: [Doug DC-9-83](https://openairdocs.org/model/douglas-dc-9-83) (OpenAirDocs)
- Aircraft serial: 53622
- Aircraft time: 35,672 hours, 16,830 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Control Valve
- Condition: Broken
- Location: Ac Bay
- Stage of operation: CR
- How discovered: O
- Nature of condition: B
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA20111209TUL08

## Discrepancy

ELP - CREW REPORTED SMOKE IN THE CABIN AND COCKPIT.  EMERGENCY DECLARED FLIGHT RETURNED ELP LANDED WITHOUT INCIDENT.  AIRCRAFT REMOVED FROM SERVICE.  REPLACED RIGHT PACK FLOW CONTROL VALVE THAT WAS BROKEN.  SYSTEM GROUND CHECK NORMAL OPERATION.

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