The U.S. aircraft register, updated daily
Deregistered · FAA record as of October 2, 2026
N4239J

N4239J is not currently registered. It was last assigned to a Bell 47G-2. The FAA cancelled the registration on May 3, 2018. The last status on file was "registration expired, pending cancellation". The number has been on and off the register 2 times.

Bell 47G-2 cancelled May 3, 2018

Serial number
1
Type
Rotorcraft · Piston (reciprocating)
Year built
—
Last status
Registration expired, pending cancellation
Certificate issued
December 5, 2011
Last FAA action
October 6, 2014
Last owner
Underwood William D (Individual)
Peoria, AZ
Airworthiness
None on file

Piper PA-28-140 cancelled July 20, 1970

Serial number
28-22591
Type
Fixed-wing, single engine · Piston (reciprocating)
Year built
—
Last status
Valid registration
Certificate issued
May 10, 1967
Last FAA action
—
Last owner
Sundin Aviation CO (Partnership)
Newark, OH
Airworthiness
None on file

NTSB accident and incident record under N4239J

LAX86LA203Accident on May 2, 1986 at Palmdale, CA: no injuries, substantial damage.

Aircraft on the NTSB record: Bell 47G-2 · serial 1

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