# SDR DALA2019030501475

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 4, 2019
- Submitted: March 5, 2019
- Operation: Air carrier
- Aircraft: [N363NW](https://openairdocs.org/aircraft/N363NW), registered now
- Make and model: Airbus A320-212
- Registry model: [Airbus A320-212](https://openairdocs.org/model/airbus-industrie-a320-212) (OpenAirDocs)
- Aircraft serial: 923
- Aircraft time: 61,987 hours, 28,186 cycles
- Engine time: 44,784 hours, 22,086 cycles
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Regulator Valve
- Condition: Malfunctioned
- Location: Bleed Air Sys
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: B
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2019030501475

## Discrepancy

SHIP 3263 - PRES - EMERGENCY DESCENT FROM CRUISING ALTITUDE OF 35017 FT. DUE TO THE LOSS OF CABIN PRESSURIZATION. ECAM WARNING: CAB PR EXCESS CAB ALT WITH CABIN ALTITUDE AT 9568 FT. FLIGHT CONTINUED TO DESTINATION AT LOWER ALTITUDE. AIR PACK-2 WAS PREVIOUSLY ON MEL AND ENG-2 BLEED WAS NOT IN USE. ENG-1 BLEED FAILED EN ROUTE. CORRECTIVE ACTION - REPLACED ENG-1 PRESS. REGULATING VALVE (PRV) AND THE SENSE LINE.

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