# SDR YENA2026032700342

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 25, 2026
- Submitted: March 27, 2026
- Operation: Air carrier
- Aircraft: [N4048J](https://openairdocs.org/aircraft/N4048J), 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: 10446
- Aircraft time: 17,779 hours, 2,641 cycles
- System (JASC): [2121 · Air Distribution Fan](https://openairdocs.org/jasc/2121)
- Part: Fan
- Part number: AE1819B00
- Part serial: 222603083
- Condition: Failed
- Location: Zone 100
- Part time: 17,779 hours, 2,641 cycles
- Stage of operation: CR
- How discovered: O
- Nature of condition: E
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/YENA2026032700342

## Discrepancy

FLT #1408 CDG-JFK (ETOPS)."REVERBERATING (HALLOW) SOUND UNDER FLIGHT DECK AND FORWARD GALLEY AT CRUISE (ALL INDICATIONS NORMAL). NOISE DISAPPATED AFTER 1 HR.; REMOVED AND REPLACED FAN-BLOWER AVNCS VENT (20HQ) OPS CHK NORMAL PER TASK 21-269-51 AND PERFORMED TSM TASK 21-26-00-810-837A UP TO STEP #3."

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