# SDR YENA2022100500986

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 28, 2022
- Submitted: October 14, 2022
- Operation: Air carrier
- Aircraft: [N4062J](https://openairdocs.org/aircraft/N4062J), registered now
- Make and model: Airbus A321-271N
- Registry model: [Airbus A321-271N](https://openairdocs.org/model/airbus-a321-271n) (OpenAirDocs)
- Aircraft serial: 10839
- Aircraft time: 586 hours, 98 cycles
- System (JASC): [2421 · AC Generator-Alternator](https://openairdocs.org/jasc/2421)
- Part: Gcu
- Part number: 767584M
- Part serial: AAAY023307
- Condition: Failed
- Location: 1xu2
- Part time: 679 hours, 111 cycles
- Stage of operation: IN
- 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/YENA2022100500986

## Discrepancy

FLT#1620, BOS-LHR. (ETOPS) 'AC GEN CLASS II MSG ( CLASS II MX MSG - GPCU OR AC GEN ); REMOVED AND REPLACED GCU # 2 PER TSM 24-22-00-810-832-A, VERIFIED BY GROUND CHECK AND OPC PROCEDURE IAW AMM 24-41-00. OPS CHECK WAS GOOD, NO MSGS WERE NOTED. MDDR ITEM RESTORED. MX-4 UPDATED, PLACARD REMOVED.' (SUPPLEMENTAL INFORMATION ADDED)

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