# SDR AALA20150302001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 1, 2015
- Submitted: March 2, 2015
- Operation: Air carrier
- Aircraft: [N590AA](https://openairdocs.org/aircraft/N590AA), 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: 53253
- Aircraft time: 72,985 hours, 32,024 cycles
- System (JASC): [2131 · Cabin Pressure Controller](https://openairdocs.org/jasc/2131)
- Part: Controller
- Condition: Malfunctioned
- Location: Cabin Pressure
- Stage of operation: CR
- 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/AALA20150302001

## Discrepancy

EMERGENCY DECLARED, LANDING UNEVENTFUL & ACFT WAS NOT OVERWEIGHT.  LOSS OF CABIN AUTO PRESSURIZATION CONTROL INBD.  CREW SWITCHED TO MANUAL CONTROL & LANDED WITHOUT INCIDENT.  REPLACED COCKPIT PRESSURE CONTROLLER IAW 21-32-00.

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