# SDR YENA2026020200102

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 31, 2026
- Submitted: February 2, 2026
- Operation: Air carrier
- Aircraft: [N4077J](https://openairdocs.org/aircraft/N4077J), 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: 11604
- Aircraft time: 8,315 hours, 1,293 cycles
- System (JASC): [5220 · Emergency Exits](https://openairdocs.org/jasc/5220)
- Part: Seal
- Condition: Dirty
- Location: Zone 800
- 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/YENA2026020200102

## Discrepancy

FLT 20, LHR - JFK (ETOPS).  REPEAT WRITE UP FROM PREVIOUS LEGS IN CRUISE FLIGHT, STEADY LOUD NOISE COMING FROM AROUND VICINITY. SOUND IS CONSTANT, LOW-FREQUENCY HUM. ; PERFORMED THE VISUAL INSPECTION OF EMERGENCY EXIT DOOR SEALS IAW AMM 55-22-00-220-002-A. CLEANED AND LUBRICATED DOOR SEALS. PRESSURIZATION CHECK PERFORMED NO NOISE NOTED.

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