# SDR AALA20121122003

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 22, 2012
- Submitted: November 25, 2012
- Operation: Air carrier
- Aircraft: [N478AA](https://openairdocs.org/aircraft/N478AA), registered now
- Make and model: Doug DC-9-82
- Registry model: [Doug DC-9-82](https://openairdocs.org/model/mcdonnell-douglas-dc-9-82) (OpenAirDocs)
- Aircraft serial: 49653
- Aircraft time: 69,354 hours, 36,450 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Elbow
- Condition: Loose
- Location: Ac Bay
- Stage of operation: TO
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA20121122003

## Discrepancy

DFW - CREW REPORTED NO PRESSURIZATION DURING TAKEOFF.  EMERGENCY DECLARED FLIGHT RETURNED DFW LANDED WITHOUT INCIDENT.  AIRCRAFT REMOVED FROM SERVICE.  RE-SECURED LOOSE ELBOW CONNECTION ON RIGHT PRESSURE REGULATOR VALVE.  SYSTEM GROUND CHECK NORMAL OPERATION.

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