# SDR 2004UALA00638

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 2, 2004
- Submitted: July 27, 2004
- Operation: Air carrier
- Aircraft: N582UA
- Make and model: Boeing 757222
- Aircraft serial: 26702
- Aircraft time: 37,430 hours, 12,910 cycles
- Engine: Pwa PW2037
- System (JASC): [2420 · AC Generation System](https://openairdocs.org/jasc/2420)
- Part: Idg
- Part number: 729825G
- Part serial: CO837
- Condition: Failed
- Location: Left
- Stage of operation: CL
- How discovered: 9
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2004UALA00638

## Discrepancy

LEFT GENERATOR DRIVE LIGHT ILLUMINATED.  LEFT AC INTEGRATED DRIVE GENERATOR (IDG) FAILED.  REPLACED LEFT IDG.  SHOP FINDINGS:  HYDRAULIC MOTOR/PUMP GEAR FAILURE.

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