# N1721X: 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 13, 1989
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=1721X
- Page: https://openairdocs.org/aircraft/N1721X

## Aircraft that carried N1721X

- [Cancelled 1989-12-13](https://openairdocs.org/deregistered/N1721X-1989-12-13): Cessna T210L, S/N 21060743. Triennial form not returned

## NTSB investigations on N1721X (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 DEN87FA061](https://openairdocs.org/ntsb/DEN87FA061), Jan 28, 1987: Cessna T210L (N1721X), Nucla, CO, destroyed, 4 fatal
- [NTSB DEN77DTC28](https://openairdocs.org/ntsb/DEN77DTC28), Sep 10, 1977: Cessna T210L (N1721X), Keyhole, WY, substantial damage

## FAA accident and incident reports on N1721X (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 19870128003969A](https://openairdocs.org/incident/19870128003969A), Jan 28, 1987: Cessna T210L (N1721X), Nucla, CO, Destroyed, 4 fatal. Struck trees on mountain at 9200 feet during descent in instrument meteorological conditions. Cruise clearance.
- [Accident 19770910028549A](https://openairdocs.org/incident/19770910028549A), Sep 10, 1977: Cessna T210L (N1721X), Keyhole, WY, Substantial damage

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.