N4538K is not currently registered. It was last assigned to an Air Tractor Inc AT-401. The FAA cancelled the registration on October 5, 1994. The last status on file was "triennial registration form was mailed and has not been returned by the post office". The number has been on and off the register 2 times.
Air Tractor Inc AT-401 cancelled October 5, 1994
- Serial number
- 4010770
- Type
- Fixed-wing, single engine · Piston (reciprocating)
- Year built
- —
- Last status
- Triennial registration form was mailed and has not been returned by the Post Office
- Certificate issued
- July 31, 1991
- Last FAA action
- August 17, 1994
- Last owner
- Frontier Agricultural Service INC (Corporation)
Calexico, CA - Airworthiness
- None on file
Cessna P210N cancelled July 31, 1989
- Serial number
- P21000211
- Type
- Fixed-wing, single engine · Piston (reciprocating)
- Year built
- —
- Last status
- N-number assigned but not yet registered
- Certificate issued
- —
- Last FAA action
- —
- Last owner
- Withheld
- Airworthiness
- None on file
NTSB accident and incident record under N4538K
Aircraft on the NTSB record: Air Tractor AT-401 · serial 401-0770
THE ERECTION OF A CONSTRUCTION SIGN ON AN ACTIVE RUNWAY BY COUNTY WORKERS WITHOUT NOTIFYING THE AIRPORT OPERATORS, AND, THE INABILITY OF THE PILOT TO DETECT THE PRESENCE OF THE SIGN DURING THE DARK NIGHT TAKEOFF.
A tail number passes between aircraft over the years; match the serial number on the NTSB record against the airframe above. Source: NTSB aviation accident database, records through September 30, 2026.
Source: FAA Civil Aviation Registry, Releasable Aircraft Database, October 2, 2026. See this number on the FAA site