# N4503U: not currently registered

- Registered now: No (not in the FAA registry file). The mark may be reserved or free to assign
- Earlier aircraft: 3
- Last cancelled: October 5, 2007
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=4503U
- Page: https://openairdocs.org/aircraft/N4503U

## Aircraft that carried N4503U

- [Cancelled 2007-10-05](https://openairdocs.org/deregistered/N4503U-2007-10-05): Sikorsky S-92A, S/N 920060, built 2007. Exported to Denmark. Owner: [Wells Fargo Bank Northwest Na Trustee](https://openairdocs.org/faa-owner/WELLS%20FARGO%20BANK%20NORTHWEST%20NA%20TRUSTEE), [Salt Lake City, UT](https://openairdocs.org/faa-place/UT/Salt%20Lake%20City)
- [Cancelled 2003-07-22](https://openairdocs.org/deregistered/N4503U-2003-07-22): Air Tractor AT-401, S/N 401-0748. Triennial form not returned. Owner: [Olson Arlen A](https://openairdocs.org/faa-owner/OLSON%20ARLEN%20A), [Elm Creek, NE](https://openairdocs.org/faa-place/NE/Elm%20Creek)
- [Cancelled 1989-03-06](https://openairdocs.org/deregistered/N4503U-1989-03-06): Cessna 150D, S/N 15060503. Triennial form not returned

## NTSB investigations on N4503U (2)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB CHI93LA170](https://openairdocs.org/ntsb/CHI93LA170), May 14, 1993: Air Tractor AT-401 (N4503U), Oconto, NE, destroyed. Probable cause: THE PILOT'S INABILITY TO MAINTAIN ALTITUDE AFTER ENCOUNTERING A DOWNDRAFT.
- [NTSB MKC88LA153](https://openairdocs.org/ntsb/MKC88LA153), Aug 9, 1988: Cessna 150 (N4503U), Macomb, MO, substantial damage

## FAA accident and incident reports on N4503U (2)

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.

- [Accident 19930514013739A](https://openairdocs.org/incident/19930514013739A), May 14, 1993: Airtrc AT401 (N4503U), Oconto, NE, Destroyed. Reported low clouds over spray field and a micro burst caused loss of altitude and ground impact.
- [Accident 19880809032329A](https://openairdocs.org/incident/19880809032329A), Aug 9, 1988: Cessna 150D (N4503U), Macomb, MO, Substantial damage. Ran out of fuel en route. Stalled 20 feet above a field banking to avoid cattle and a farm pond. Crash landed.

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