# SDR VQI2015F00029

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 4, 2015
- Submitted: August 21, 2015
- Operation: Air carrier
- Aircraft: [N642VA](https://openairdocs.org/aircraft/N642VA), registered now
- Make and model: Airbus A320-214
- Registry model: [Airbus A320-214](https://openairdocs.org/model/airbus-a320-214) (OpenAirDocs)
- Aircraft serial: 3670
- Aircraft time: 22,909 hours, 8,398 cycles
- System (JASC): [2450 · AC Power Distribution System](https://openairdocs.org/jasc/2450)
- Part: Contactor
- Condition: Odor
- Location: Ac Buss
- Stage of operation: NR
- How discovered: 9
- Nature of condition: B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/VQI2015F00029

## Discrepancy

REPORTED ELECTRICAL BURNING ODOR AND ASSOCIATED ECAM AVIONICS SMOKE MESSAGES AT POWER TRANSFER FROM APU TO NR 1 ENGINE.  THE ENGINE WAS SHUTDOWN AND THE ODOR DISIPATED.  TECHS REPLACED AC ESS BUSS SWITCHING CONTACTOR 3XC AND GAPCU 24XG.

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