# SDR DALA2023090607296

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 4, 2023
- Submitted: September 6, 2023
- Operation: Air carrier
- Aircraft: [N3744F](https://openairdocs.org/aircraft/N3744F), registered now
- Make and model: Boeing 737832
- Aircraft serial: 30837
- Aircraft time: 72,360 hours, 27,200 cycles
- System (JASC): [2130 · Cabin Pressure Control System](https://openairdocs.org/jasc/2130)
- Part: Valve
- Part number: 2123003AC
- Part serial: 07115258
- Condition: Inoperative
- Location: Unknown
- Part time: 46,604 hours, 17,070 cycles
- Stage of operation: CR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2023090607296

## Discrepancy

SHIP 3744- DIV/PRESS- TO MSP DUE TO INABILITY TO MAINTAIN CABIN PRESSURIZATION. MASKS DID NOT DEPLOY. CORRECTIVE ACTION: MAINTENANCE REPLACED OUTFLOW VALVE PER B737 AMM 21-31.

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