# SDR YENA2026020200109

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 2, 2026
- Submitted: February 2, 2026
- Operation: Air carrier
- Aircraft: [N4064J](https://openairdocs.org/aircraft/N4064J), 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: 10861
- Aircraft time: 13,506 hours, 2,034 cycles
- System (JASC): [2421 · AC Generator-Alternator](https://openairdocs.org/jasc/2421)
- Part: Seal
- Condition: Leaking
- Location: Idg Shaft
- Component: Idg, Hmltnsnstrnd
- Component part number: 1718201
- Stage of operation: IN
- How discovered: V
- Nature of condition: K
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/YENA2026020200109

## Discrepancy

FLT 1621, LHR-BOS (ETOPS),  NR 1 ENGINE IDG REQS REPLACEMENT DUE TO LEAK AROUND DRIVE SHAFT SEAL.  R & R THE NR 1 IDG IAW AMM 24-21-51 REF L/P 4637336 ITEM 1 FOR OPS / LEAKS CHK.  PERFORMED ENG NR 1 IDG OPS AND LEAK CHK PER AMM  24-21-51. OPS AND LEAK CHK GOOD.

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