# SDR DALA2020111003651

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 7, 2020
- Submitted: November 10, 2020
- Operation: Air carrier
- Aircraft: [N809NW](https://openairdocs.org/aircraft/N809NW), registered now
- Make and model: Airbus A330-323
- Registry model: [Airbus A330-323](https://openairdocs.org/model/airbus-a330-323) (OpenAirDocs)
- Aircraft serial: 0663
- Aircraft time: 68,234 hours, 8,897 cycles
- System (JASC): [5270 · Door Warning System](https://openairdocs.org/jasc/5270)
- Part: Warning Light
- Condition: False Activation
- Location: L4 Door
- Stage of operation: NR
- How discovered: O
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2020111003651

## Discrepancy

FL390 AFTER BUMP OF TURBULENCE, GOT DOOR LT AFT ECAM MESSAGE.  4L DOOR SHOWED OPEN ON SD AND FAP.  QRH PROCEDURE APPLIED, STEADY CABIN PRESS.   CORRECTIVE ACTION: T/S OPEN/CLOSE CYCLED L AFT DOOR. BITE TEST PSCU, TEST OK.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.