# SDR YENA2024071100948

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 9, 2024
- Submitted: July 11, 2024
- Operation: Air carrier
- Aircraft: [N4076J](https://openairdocs.org/aircraft/N4076J), registered now
- Make and model: Airbus A321-271N
- Registry model: [Airbus A321-271N](https://openairdocs.org/model/airbus-a321-271n) (OpenAirDocs)
- Aircraft serial: 11513
- Aircraft time: 3,177 hours, 463 cycles
- System (JASC): [2421 · AC Generator-Alternator](https://openairdocs.org/jasc/2421)
- Part: Gcu
- Part number: 767584M
- Part serial: AAAY024647
- Condition: Failed
- Stage of operation: NR
- 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/YENA2024071100948

## Discrepancy

FLT#20, LHR-JFK. (ETOPS) '"AC GEN" CLASS 2 MX MESSAGE ON ECAM; REMOVED AND REPLACED GCU (1XU1) IAW AMM 24-22-34. OPS CHECK GOOD, NO FAULTS PRESENT AT THIS TIME. MDDR CLEARED, MC-4 UPDATED, PLACARD REMOVED

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