# SDR DALA2022011000208

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 6, 2022
- Submitted: January 10, 2022
- Operation: Air carrier
- Aircraft: [N804NW](https://openairdocs.org/aircraft/N804NW), registered now
- Make and model: Airbus A330-323
- Registry model: [Airbus A330-323](https://openairdocs.org/model/airbus-a330-323) (OpenAirDocs)
- Aircraft serial: 0549
- Aircraft time: 79,258 hours, 10,463 cycles
- System (JASC): [5270 · Door Warning System](https://openairdocs.org/jasc/5270)
- Part: Control Unit
- Condition: Faulted
- Location: Proximity Switch
- Stage of operation: IN
- How discovered: 9
- Nature of condition: N
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2022011000208

## Discrepancy

SHIP 3304 3R SHOWS ARMED WHEN IN DISARMED POSITION. CORRECTIVE ACTION: FAULT CONFIRMED ON FAP. R/R PROX SWITCH CTL UNIT 5MJ IAW A330 AMM 52-71. PSCU BITE OK. FAP DOOR 3R SHOWS PROPER INDICATION FOR ARMED/DISARMED AND OPEN/ CLOSE. OPERATED DOOR MULTIPLE TIMES SUCCESSFULLY. PER MCC REQUEST; R/R DOOR SENSOR 34MJ IAW A330 AMM 52-71. (2077884)

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