# SDR CALA2015100800833

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 7, 2015
- Submitted: October 8, 2015
- Operation: Air carrier
- Aircraft: [N36272](https://openairdocs.org/aircraft/N36272), registered now
- Make and model: Boeing 737824
- Aircraft serial: 31590
- Aircraft time: 47,670 hours, 15,522 cycles
- System (JASC): [2131 · Cabin Pressure Controller](https://openairdocs.org/jasc/2131)
- Part: Controller
- Part number: 71211997101AC
- Condition: Failed
- Location: Cabin Pressure
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2015100800833

## Discrepancy

ON TAXI OUT PRESSURIZATION AUTO FAIL LIGHT & ALT LIGHT ILLUMINATED, GATE RETURN.  TROUBLE SHOT & FOUND CONTROLLER INOPERATIVE.  R & R CONTROLLER IAW MM 21-31-01-401.  OPERATIONS CHECKED GOOD AT THIS TIME.  WIRING CHECKS DONE ON NR 4922229.

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