# SDR CA070524002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 22, 2007
- Submitted: June 7, 2007
- Operation: General aviation
- Make and model: Aerosp ATR 42-300
- Registry model: [Aerosp ATR 42-300](https://openairdocs.org/model/aerospatiale-aeritalia-atr-42-300) (OpenAirDocs)
- Aircraft time: 33,311 hours
- Engine: Pwa PW120
- Propeller: Hamstd 14SF5
- System (JASC): [2424 · AC Regulator](https://openairdocs.org/jasc/2424)
- Part: Gcu
- Part number: 243211
- Part serial: 513116
- Condition: Failed
- Location: Nr 1
- Stage of operation: CL
- How discovered: O
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA070524002

## Discrepancy

(CAN) DURING DEPARTURE THE NR 1 AC WILD SYSTEM WENT OFF LINE. WHEN THE CREW ATTEMPTED A RESET THE (BLUE) HYDRAULIC SYSTEM WENT OFF LINE. THE AIRCRAFT RETURNED TO POINT OF DEPARTURE AND CARRIED OUT A NORMAL LANDING. MAINTENANCE REPLACED THE NR 1 AC WILD GCU. AFTER WHICH THE AIRCRAFT WAS RETURNED TO SERVICE. (TC NR 20070524002)

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