# SDR AALA20150209014

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 9, 2015
- Submitted: February 10, 2015
- Operation: Air carrier
- Aircraft: [N979TW](https://openairdocs.org/aircraft/N979TW), 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: 53629
- Aircraft time: 43,693 hours, 21,396 cycles
- System (JASC): [2130 · Cabin Pressure Control System](https://openairdocs.org/jasc/2130)
- Part: Selector
- Part number: 1305905
- Condition: Faulty
- Location: Cabin Pressure
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA20150209014

## Discrepancy

AIR INTERRUPT, RETURNED & EMER NOT DECLARED.  LANDING UNEVENTFUL & ACFT NOT OVERWEIGHT.  DURING CLIMB CREW REPORT UNABLE TO PRESSURIZE AIRPLANE & PRESSURIZATION FLOW LIGHT ILLUMINATED.  PERFORMED BITE CHECK OF CABIN PRESS CONTROLLERS 1 & 2 WITH CABIN PRESSURIZATION SELECTOR FAULT INDICATED.  R & R SELECTOR & PERFORMED OPERATIONAL CHECK IAW AMM 21-32-10.  SYS CHECKED NORMAL.

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