# SDR AALA20150525001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 25, 2015
- Submitted: May 26, 2015
- Operation: Air carrier
- Aircraft: [N484AA](https://openairdocs.org/aircraft/N484AA), 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: 49677
- Aircraft time: 75,566 hours, 39,872 cycles
- System (JASC): [2130 · Cabin Pressure Control System](https://openairdocs.org/jasc/2130)
- Part: Switch
- Part number: 45D161
- Condition: Faulty
- Location: Ac Bay
- Stage of operation: DE
- How discovered: O
- Nature of condition: O
- Precautionary procedure: B
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA20150525001

## Discrepancy

EMERGENCY DECLARED, LANDING UNEVENTFUL & ACFT NOT OVERWEIGHT.  DURING DESCENT, CREW NOTED A PRESSURIZATION FLOW LIGHT INDICATION, LT & RT PACK FLOWS AT 0.  R & R LT & RT PACK DIFFERENTIAL SWITCHES IAW AMM 21-31-09.  SYS CHECKED NORMAL.

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