# SDR DALA2023012300514

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 18, 2023
- Submitted: January 30, 2023
- Operation: Air carrier
- Aircraft: [N803NW](https://openairdocs.org/aircraft/N803NW), registered now
- Make and model: Airbus A330-323
- Registry model: [Airbus A330-323](https://openairdocs.org/model/airbus-a330-323) (OpenAirDocs)
- Aircraft serial: 0542
- Aircraft time: 84,788 hours, 11,208 cycles
- System (JASC): [5297 · Door System Wiring](https://openairdocs.org/jasc/5297)
- Part: Circuit Breaker
- Condition: Tripped
- Location: Door Heat
- 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/DALA2023012300514

## Discrepancy

R3 ARMED ON FAP.  NO HEAT 3R 3L 4R 4L DOOR HEATERS WITH DOORS ARMED. FOUND 5005VE 2DH C/B TRIPPED. RESET AND NOW ALL AFT DOOR HEATERS OPERATE NORMALLY. IN ATL, PERFORMED WIRING CHECKS. PROX SW CTL CIRCUITS CK GOOD. ALL 8 HEATER AND TEMP SENSOR CIRCUITS ASSOCIATED W/ BREAKER 2DH CK GOOD. REPLACED R3 AFT GIRTBAR HEATING BRACKET.  ORIG SUBMISSION DATE: 1/23/2023

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