# SDR DALA2019082764988

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 24, 2019
- Submitted: August 27, 2019
- Operation: Air carrier
- Aircraft: [N674DL](https://openairdocs.org/aircraft/N674DL), registered now
- Make and model: Boeing 757232
- Aircraft serial: 25979
- Aircraft time: 87,218 hours, 38,591 cycles
- System (JASC): [2133 · Pressure Regulator/Outflow Valve](https://openairdocs.org/jasc/2133)
- Part: Outflow Valve
- Condition: Failed
- Location: Cabin Pressure
- Stage of operation: DE
- 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/DALA2019082764988

## Discrepancy

AT FL350 CABIN CLIMBED AT +200 FPM (CRUISE) DURING DESCENT. CABIN CONTROL WAS ERRATIC.   REPLACED CABIN OUTFLOW VALVE PER B757 AMM 21-31. C/W NO GO ODI PROCEDURE.

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