# SDR ASAA2015022110712

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 21, 2015
- Submitted: February 23, 2015
- Operation: Air carrier
- Aircraft: [N593AS](https://openairdocs.org/aircraft/N593AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35107
- Aircraft time: 26,499 hours, 8,181 cycles
- System (JASC): [2130 · Cabin Pressure Control System](https://openairdocs.org/jasc/2130)
- Part: Pressure System
- Condition: Malfunctioned
- Location: Cabin Pressure
- Stage of operation: TX
- 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/ASAA2015022110712

## Discrepancy

PRESSURIZATION AUTO FAIL.  ACFT GROUNDED. CPC CONTROL SWITCH BACK TO AUTO PERFORM BITE CHECK ON BOTH CPC COMPUTERS.  NO EXISTING FAULTS.  PRESSURIZATION SYS GROUND TEST IAW 21-31-00-700-802, TEST IS GOOD FOR CONTINUE SERVICE.

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