# SDR DALA2021011300204

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 11, 2021
- Submitted: January 13, 2021
- 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: 13,677 hours, 1,239 cycles
- System (JASC): [5270 · Door Warning System](https://openairdocs.org/jasc/5270)
- Part: Warning Light
- Condition: False Activation
- Location: Door Pressure
- Stage of operation: IN
- How discovered: O
- Nature of condition: N
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2021011300204

## Discrepancy

AFTER SHUTDOWN, CABIN DOORS SHOWED PRESURIZATION RED LIGHTS WARNING.  VERIFIED BOTH OUTFLOW VALVES OPENED & 0 PSI DIFFRENTIAL.  CORRECTIVE ACTION: NO FAULT IN PLF.  T/S PER TSM A350-A-52-71.  PERFORMED BITE TEST OF THE DSCS - PASS, PER A350 AMM 52-71.

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