# N521US: not currently registered

- Registered now: No (not in the FAA registry file). The mark may be reserved or free to assign
- Earlier aircraft: 1
- Last cancelled: December 6, 2018
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=521US
- Page: https://openairdocs.org/aircraft/N521US

## Aircraft that carried N521US

- [Cancelled 2018-12-06](https://openairdocs.org/deregistered/N521US-2018-12-06): Boeing 757-251, S/N 23209, built 1986. Owner: [Delta Air Lines Inc](https://openairdocs.org/faa-owner/DELTA%20AIR%20LINES%20INC), [Atlanta, GA](https://openairdocs.org/faa-place/GA/Atlanta)

## FAA accident and incident reports on N521US (1)

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [Incident 20060626012369I](https://openairdocs.org/incident/20060626012369I), Jun 26, 2006: Boeing 757251 (N521US), Las Vegas, NV. (-23) Las-dtw, returned to las due to a pressurization problem and that 12 pax had heat and ear injuries. NTSB determined injuries to be minor and later…

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