# SDR C2XA01BT124

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 27, 2001
- Submitted: July 5, 2001
- Operation: Air carrier
- Aircraft: N34820
- Make and model: Aerosp ATR 42-320
- Registry model: [Aerosp ATR 42-320](https://openairdocs.org/model/aerospatiale-aeritalia-atr-42-320) (OpenAirDocs)
- Aircraft serial: 159
- Aircraft time: 25,397 hours, 29,724 cycles
- System (JASC): [2420 · AC Generation System](https://openairdocs.org/jasc/2420)
- Part: Gcu
- Part number: 243211
- Part serial: 5131195
- Condition: Faulty
- Location: Cpt. Elect Pnl.
- Stage of operation: CR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/C2XA01BT124

## Discrepancy

EWR---CO3433, CREW REPORTED ACW GENERATOR #2 FAULT LIGHT ILLUMINATED IN FLIGHT, SMELL OF ELECTRICAL INSULATION BURNING WAS PRESENT FOR ABOUT TEN MINUTES AFTER WE DESELECTED THE ACW GEN 2 PUSHBUTTON.......MAINTENANCE FOUND A CHAFFED WIRE AT ACW GEN #2 REPAIRED WIRE, ALSO FOUND #2 ACW GENERATOR CONTROL UNIT FAILED (SUSPECTED CAUSED BY CHAFFED/SHORTED WIRE)....MAINTENANCE REMOVED AND REPLACED #2 ACW GENERATOR CONTROL UNIT (GCU) IAW ATR42 JIC 24-22-84. OPS. CHECKED SYSTEM GOOD.

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