# SDR AALA202605136039

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 12, 2026
- Submitted: May 13, 2026
- Operation: Air carrier
- Aircraft: [N521UW](https://openairdocs.org/aircraft/N521UW), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 3944
- Aircraft time: 54,310 hours, 20,924 cycles
- Engine: Iae V2533A5
- Engine time: 53,071 hours, 20,494 cycles
- System (JASC): [2497 · Electrical Power System Wiring](https://openairdocs.org/jasc/2497)
- Part: Contact
- Condition: Burned
- Location: Idg
- 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/AALA202605136039

## Discrepancy

AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED INTO ORD DUE TO THE FLIGHT CREW REPORTING THAT THE NR 1 GENERATOR FAILED DURING FLIGHT. THE AIRCRAFT LANDED SAFELY AT ORD AND WAS TOWED TO THE GATE.     MAINTENANCE FOUND #1 IDG CONNECTOR 400VC1 AND 400VC1A HAD BURNT CONTACT ON BOTH THE AIRCRAFT SIDE AND THE ENGINE SIDE OF THE CONNECTOR. MAINTENANCE REPLACED THE #1 ENGINE IDG HARNESS PER AMM 24-21-43, REPLACED THE CONTACTS AND CANNON PLUG JACK 400VC1 PER ESPM 20-48-23 / ESPM 20-44-14. A SATISFACTORY OPERATIONAL CHECK WAS ACCOMPLISHED WITH NO ISSUES NOTED.

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