N4531M is not currently registered. It was last assigned to an Air Tractor Inc AT-401. The FAA cancelled the registration on October 15, 1999. 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 15, 1999
- Serial number
- 401-0764
- 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
- August 14, 1990
- Last FAA action
- August 17, 1999
- Last owner
- Kifer Flying Service INC (Corporation)
Newellton, LA - Airworthiness
- None on file
Piper PA-11 cancelled May 25, 1949
- Serial number
- 11-35
- Type
- Fixed-wing, single engine · Piston (reciprocating)
- Year built
- 1947
- Last status
- Valid registration
- Certificate issued
- April 24, 1947
- Last FAA action
- —
- Last owner
- Cape & Islands Airways INC (Corporation)
Wareham, MA - Airworthiness
- None on file
NTSB accident and incident record under N4531M
Aircraft on the NTSB record: Air Tractor AT-401 · serial 401-0764
The pilot's failure to maintain aircraft control during an inadvertent entry into adverse weather conditions. A related factor was the fog.
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