N421KB is not assigned to an aircraft right now: the number is reserved in the FAA registry. The FAA files list 1 earlier registration of this number, shown below.
Reserved N-number
- Reservation
- Reserved - renewal notice sent
- Reserved on
- Oct 22, 2025
- Reservation expires
- Aug 22, 2026
Earlier registrations of this number
| Canceled | Aircraft | Serial | Year | Exported to | Same airframe today |
|---|---|---|---|---|---|
| Jul 7, 2017 | CESSNA 421B | 421B0432 | 2000 |
NTSB accident and incident records
| Date | Place | Aircraft (as NTSB recorded it) | Damage | Highest injury | NTSB no. |
|---|---|---|---|---|---|
| Jun 4, 2010 | Anderson, IN | Cessna 421B | Substantial | None | CEN10CA301 |
From the NTSB aviation accident database (events since 2008, data through Oct 28, 2026), matched by N-number. An N-number can move between aircraft, so each row is checked against the serial number on the current registration.