# SDR AALA20130730012

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 30, 2013
- Submitted: August 1, 2013
- Operation: Air carrier
- Aircraft: N9412W
- Make and model: Doug DC-9-83
- Registry model: [Doug DC-9-83](https://openairdocs.org/model/douglas-dc-9-83) (OpenAirDocs)
- Aircraft serial: 53187
- Aircraft time: 52,581 hours, 25,964 cycles
- System (JASC): [2130 · Cabin Pressure Control System](https://openairdocs.org/jasc/2130)
- Part: Switch
- Condition: Inoperative
- Location: Cabin Pressure
- Stage of operation: CL
- How discovered: O
- Nature of condition: S
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA20130730012

## Discrepancy

DFW CREW REPORTED AFTER TAKE OFF AIRCRAFT DID NOT PRESSURIZE, AUTO SPOILER FAIL LIGHT & STALL INDICATOR FAIL LIGHTS ILLUMINATED.  FLIGHT RETURNED DFW LANDED WITHOUT INCIDENT.  AIRCRAFT REMOVED FROM SERVICE.  REPLACED S1-12 SWITCH.  SYSTEM GROUND CHECKED NORMAL.  OPERATION (CLOSED)

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