# SDR MYWA09070

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 12, 2009
- Submitted: February 16, 2010
- Operation: Air carrier
- Aircraft: N733MA
- Make and model: Boeing 737-81Q
- Registry model: [Boeing 737-81Q](https://openairdocs.org/model/boeing-737-81q) (OpenAirDocs)
- Aircraft serial: 30619
- Aircraft time: 23,746 hours, 8,487 cycles
- System (JASC): [2130 · Cabin Pressure Control System](https://openairdocs.org/jasc/2130)
- Part: Warning Light
- Condition: Illuminated
- Location: Cabin Pressure
- Stage of operation: IN
- 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/MYWA09070

## Discrepancy

ETOPS SIGNIFICANT SYSTEM - PRESSURIZATION:  AUTO FAIL AND ALTN LIGHT ON, AUTO FAIL LIGHT GOES OFF WHEN PRESS MODE SELECTOR SWITCH IS IN ALTN.

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