# SDR UIEA2025091101180

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 9, 2025
- Submitted: September 11, 2025
- Operation: Air carrier
- Aircraft: [N405KZ](https://openairdocs.org/aircraft/N405KZ), registered now
- Make and model: Boeing 747-400
- Registry model: [Boeing 747-400](https://openairdocs.org/model/boeing-747-400) (OpenAirDocs)
- Aircraft serial: 36132
- Aircraft time: 62,708 hours, 11,587 cycles
- System (JASC): [2421 · AC Generator-Alternator](https://openairdocs.org/jasc/2421)
- Part: Idg
- Part number: 766088B
- Part serial: Y0703H
- Condition: Faulted
- Location: Nr 1
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2025091101180

## Discrepancy

ELEC DRIVE 1 ILLUMINATED ON EICAS.  REMOVED AND REPLACED #1 IDG PER AMM 24-11-01. OPS/LEAK CHECK GOOD. MESSAGE CLEARED.</P>)

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