# SDR DALA2026070703943

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 7, 2026
- Submitted: July 7, 2026
- Operation: Air carrier
- Aircraft: [N517DN](https://openairdocs.org/aircraft/N517DN), 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: 11078
- Aircraft time: 15,495 hours, 3,813 cycles
- System (JASC): [3244 · Tire](https://openairdocs.org/jasc/3244)
- Part: Tire
- Condition: Separation
- Location: Zone 700
- Stage of operation: CL
- How discovered: O
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2026070703943

## Discrepancy

DECLARED EMERGENCY INTO JFK DUE TO A SUSPECTED LEFT MLG TIRE TREAD SEPARATION AFTER RECEIVING A REPORT OF TIRE DEBRIS IDENTIFIED IN SEA. INSPECTION CONFIRMED TREAD SEPARATION ON THE NR 1 TIRE WITH NO LOSS OF PRESSURE. REPLACED LT MLG TIRE. (LP 9077959 - AIRCRAFT WAS GROUNDED)

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