# SDR YENA2025111001097

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 8, 2025
- Submitted: January 13, 2026
- Operation: Air carrier
- Aircraft: [N2142J](https://openairdocs.org/aircraft/N2142J), registered now
- Make and model: Airbus A321-271NX
- Registry model: [Airbus A321-271NX](https://openairdocs.org/model/airbus-s-a-s-a321-271nx) (OpenAirDocs)
- Aircraft serial: 10254
- Aircraft time: 16,779 hours, 3,121 cycles
- System (JASC): [2421 · AC Generator-Alternator](https://openairdocs.org/jasc/2421)
- Part: Gcu
- Part number: 767584M
- Part serial: AAAY022112
- Condition: Faulted
- Location: Nr 2
- Part time: 16,855 hours, 3,136 cycles
- Stage of operation: NR
- How discovered: V
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/YENA2025111001097

## Discrepancy

FLT 1591, JFK-LIR. (ETOPS)  CLASS II MAINTENANCE AC GEN ( CLASS II MX MSG - GPCU OR AC GEN ); REMOVED AND REPLACED NR 2 GCU IAW AMM 24-22-34. OPS CHK GOOD NO FAULT MSG PRESENT AT THIS TIME MX-4 UPDATED PLAC REMOVED.

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