# SDR DALA2020083102901

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 6, 2020
- Submitted: August 31, 2020
- Operation: Air carrier
- Aircraft: [N502DN](https://openairdocs.org/aircraft/N502DN), registered now
- Make and model: Airbus A350-941
- Registry model: [Airbus A350-941](https://openairdocs.org/model/airbus-a350-941) (OpenAirDocs)
- Aircraft serial: 0135
- Aircraft time: 11,918 hours, 1,253 cycles
- System (JASC): [5270 · Door Warning System](https://openairdocs.org/jasc/5270)
- Part: Pressure Switch
- Condition: Inoperative
- Location: Door
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2020083102901

## Discrepancy

DOOR RESIDUAL DIFFERENTIAL PRESSURE DETECTION INOP ALL DOORS LIGHTS FLASHING. CORRECTIVE ACTION: REPLACED DIFFERENTIAL PRESSURE SWITCH (FIN 302MJ) PER A350 AMM 52-71. LEAK CHECK AND BITE CHECK GOOD.

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