# SDR SA08032

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 5, 2008
- Submitted: May 9, 2008
- Operation: Air carrier
- Aircraft: [N809AW](https://openairdocs.org/aircraft/N809AW), registered now
- Make and model: Airbus A319-132
- Registry model: [Airbus A319-132](https://openairdocs.org/model/airbus-a319-132) (OpenAirDocs)
- Aircraft serial: 1111
- System (JASC): [2420 · AC Generation System](https://openairdocs.org/jasc/2420)
- Part: Transformer
- Part number: Y0052
- Part serial: 3589
- Condition: Inoperative
- Location: Nr 1
- Part time: 31,864 hours, 12,408 cycles
- Stage of operation: DE
- How discovered: O
- Nature of condition: H
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SA08032

## Discrepancy

BOS, FLIGHT 64, LAS-BOS, APPROXIMATELY 70 MILES OUT OF BOS, THE CREW HAS AN ESSENTIAL AC BUS FAULT FAILURE.  THE COCKPIT WENT DARK FOR A BRIEF TIME BUT AFTER FOLLOWING PROCEDURES SOME INSTRUMENTS RETURNED.  MAINTENANCE REPLACED THE NR 1 TRANSFORMER UNIT AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK.

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