# SDR SWAA2014110533722

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 2, 2014
- Submitted: November 6, 2014
- Operation: Air carrier
- Aircraft: N739GB
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 29275
- Aircraft time: 57,131 hours, 33,789 cycles
- System (JASC): [2131 · Cabin Pressure Controller](https://openairdocs.org/jasc/2131)
- Part: Controller
- Part number: 71211997101AC
- Part serial: 9512055
- Condition: Faulty
- Location: Ac Bay
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2014110533722

## Discrepancy

AIR TURN BACK AUTO FAIL & ALTERNATE LIGHT ILLUMINATED AT FL410.  R & R NR 1 CABIN PRESS CONTROLLER IAW AMM.

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