# N4521S: 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: August 28, 2013
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=4521S
- Page: https://openairdocs.org/aircraft/N4521S

## Aircraft that carried N4521S

- [Cancelled 2013-08-28](https://openairdocs.org/deregistered/N4521S-2013-08-28): Robinson Helicopter R44 II, S/N 13279, built 2012. Sale reported, canceled. Owner: [Fort Lauderdale, FL](https://openairdocs.org/faa-place/FL/Fort%20Lauderdale)
- [Cancelled 2002-02-12](https://openairdocs.org/deregistered/N4521S-2002-02-12): Cameron Balloons US A-105, S/N 5909, built 1993. Exported to Japan. Owner: [Shuckhart David W](https://openairdocs.org/faa-owner/SHUCKHART%20DAVID%20W), [Belen, NM](https://openairdocs.org/faa-place/NM/Belen)
- [Cancelled 1990-03-09](https://openairdocs.org/deregistered/N4521S-1990-03-09): Beech V35B, S/N D9459. Triennial form not returned

## NTSB investigations on N4521S (1)

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 FTW89LA040](https://openairdocs.org/ntsb/FTW89LA040), Jan 9, 1989: Beech V35B (N4521S), Pawhuska, OK, substantial damage. Probable cause: FUEL TANK SELECTOR VALVE BEING INADVERTENTLY SWITCHED OFF AND THE PILOT'S EMERGENCY PROCEDURES INADEQUATE IN DISCOVERINGAND CORRECTING THE PROBLEM. THIS RESULTED IN THE FUEL STARVATION RELATED POWER…

## FAA accident and incident reports on N4521S (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.

- [Accident 19890109000359A](https://openairdocs.org/incident/19890109000359A), Jan 9, 1989: Beech V35B (N4521S), Pawhuska, OK, Substantial damage. Door came open in flight. Engine lost power landed in rough field and ran thru a fence. Fuel selector between tanks

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