# N4521W: 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: May 30, 2018
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=4521W
- Page: https://openairdocs.org/aircraft/N4521W

## Aircraft that carried N4521W

- [Cancelled 2018-05-30](https://openairdocs.org/deregistered/N4521W-2018-05-30): Cameron Balloons US O-65, S/N 5910, built 1994. Sale reported, canceled. Owner: [Troy, MI](https://openairdocs.org/faa-place/MI/Troy)

## FAA accident and incident reports on N4521W (3)

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 19870521041489I](https://openairdocs.org/incident/19870521041489I), May 21, 1987: Boeing 737247 (N4521W), Salt Lake City, UT. The aircraft aborted takeoff due to engine fluctuation. Replaced engine fuel control.
- [Incident 19850928056539I](https://openairdocs.org/incident/19850928056539I), Sep 28, 1985: Boeing 737247 (N4521W), Albuquerque, NM. Encountered turbulence en route. Three flight attendants had minor injuries.
- [Incident 19780826039109I](https://openairdocs.org/incident/19780826039109I), Aug 26, 1978: Boeing 737/ (N4521W), San Francisco, CA. Phone call to airlines stating bomb onboard flight. Returned for search. 4 passengers hurt in evacuation

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