# SDR ASAA2014092009170

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 20, 2014
- Submitted: September 22, 2014
- Operation: Air carrier
- Aircraft: [N593AS](https://openairdocs.org/aircraft/N593AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35107
- Aircraft time: 25,170 hours, 7,803 cycles
- System (JASC): [2130 · Cabin Pressure Control System](https://openairdocs.org/jasc/2130)
- Part: Warning Message
- Condition: False Activation
- Location: Cabin Pressure
- Stage of operation: TX
- How discovered: 9
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2014092009170

## Discrepancy

DURING PREFLIGHT,  NOTED PRESSURIZATION AUTOFAIL AND ALTN ANNUNCIATORS ILLUMINATED.  ACFT GROUNDED.  PRESSURIZATION SYSTEM GROUND TESTED IAW MM TASK 21-31-00-700-802.  BOTH CONTROLLERS, OPS CHECKED GOOD, NO FAULT LOGGED AND NO CURRENT FAULT. ALL GROUND VERIFICATION TEST NORMAL. NO HISTORY 30 DAYS.

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