# SDR YENA2025090500912

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 4, 2025
- Submitted: September 5, 2025
- Operation: Air carrier
- Aircraft: [N4022J](https://openairdocs.org/aircraft/N4022J), 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: 10303
- Aircraft time: 15,745 hours, 2,328 cycles
- System (JASC): [7497 · Ignition System Wiring](https://openairdocs.org/jasc/7497)
- Part: Ignition Lead
- Part number: 10209021
- Part serial: 3CAAC05192
- Condition: Damaged
- Location: Nr 1
- Part time: 8,617 hours, 1,353 cycles
- 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/YENA2025090500912

## Discrepancy

FLT#1621, LHR-BOS. (ETOPS) L1 TSI - ENG 1 IGN A FAULT, APPROVAL REQUIRED FOR RESOLUTION, DUE TO PREVIOUS ENGINE 1 IGNITION A FAULT IN LHR AND THE INABILITY TO MEL SYSTEM A ON THE ETOPS FLEET PLEASE REPLACE ENG#1 SYSTEM A  EXCITER, IGNITER AND LEAD REF AMM 74-11-01, 74-21-01 AND 74-21-61. ENSURE ALL GMM AND RII REQUIREMENTS ARE COMPLIED WITH; (RESOLVED ON W/O: 1439029 TASKCARD: NR-00002) REMOVED AND REPLACED BOTH IGNITER PLUGS PER EMM 74-21-01, R/R'D IGN-A LEAD PER EMM 74-21-61 & R/R'D IGN EXCITER PER EMM 74-11-01.  OPS CK'D SATIS AND NO FURTHER ISSUE WAS OBSERVED.

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