# SDR DALA2022010600097

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 5, 2022
- Submitted: January 6, 2022
- Operation: Air carrier
- Aircraft: [N820DN](https://openairdocs.org/aircraft/N820DN), registered now
- Make and model: Boeing 737932ER
- Aircraft serial: 31931
- Aircraft time: 25,548 hours, 9,868 cycles
- System (JASC): [2131 · Cabin Pressure Controller](https://openairdocs.org/jasc/2131)
- Part: Valve
- Condition: Inoperative
- Stage of operation: CR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: A, B
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2022010600097

## Discrepancy

SHIP 3820 -DIV/PRESS- TO ATL DUE TO CABIN PRESSURE CLIMBING ABOVE 10K FEET. CORRECTIVE ACTION: MAINTENANCE REPLACED GROUND AIR CHECK VALVE PER B737 AMM 21-21. OPS CHECK OK AIRCRAFT RETURNED TO SERVICE.

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