# SDR DALA2020121504106

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 15, 2020
- Submitted: December 15, 2020
- Operation: Air carrier
- Aircraft: [N504DN](https://openairdocs.org/aircraft/N504DN), registered now
- Make and model: Airbus A350-941
- Registry model: [Airbus A350-941](https://openairdocs.org/model/airbus-a350-941) (OpenAirDocs)
- Aircraft serial: 0160
- Aircraft time: 13,391 hours, 1,208 cycles
- System (JASC): [2130 · Cabin Pressure Control System](https://openairdocs.org/jasc/2130)
- Part: Pressure Switch
- Condition: Dirty
- Location: Cabin Pressure
- Stage of operation: IN
- How discovered: 9
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2020121504106

## Discrepancy

AFTER PARKING AT GATE IN RJTT, ALL CABIN DOORS DISPLAYED FLASHINNG RED LIGHTS, CABIN PRESSURE WAS VERIFIED AT ZERO.  OUTFLOW VALVES FULL OPEN.  CORRECTIVE ACTION: CONFIRMED CABIN DELTA P & CABIN ALT 0.  NO ECAM MSG D/M & STATUS.  PERFORMED BITE CPCS TEST OK & COND CHECK DOOR PRESS WARNING SW NORMAL, CLEANED PRESS SW ORIFICE & ITEM OK FOR SERVICE, PER A350 AMM A350-A-21-31.

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