N501KM 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 (fee paid)
- Reserved on
- Feb 10, 2026
- Reservation expires
- Dec 10, 2026
Earlier registrations of this number
| Canceled | Aircraft | Serial | Year | Exported to | Same airframe today |
|---|---|---|---|---|---|
| Dec 9, 2020 | CESSNA 501 | 501-0101 | 1979 |
NTSB accident and incident records
| Date | Place | Aircraft (as NTSB recorded it) | Damage | Highest injury | NTSB no. |
|---|---|---|---|---|---|
| May 20, 2020 | Houston, TX | Cessna 501 | Substantial | None | CEN20LA185 |
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.