The U.S. aircraft register, updated daily
Deregistered · FAA record as of October 2, 2026
N239X

N239X is not currently registered. It was last assigned to a Fish Robert P RV 4. The FAA cancelled the registration on September 17, 2013. The last status on file was "registration expired, pending cancellation".

Fish Robert P RV 4 cancelled September 17, 2013

Serial number
812
Type
Fixed-wing, single engine · Piston (reciprocating)
Year built
—
Last status
Registration expired, pending cancellation
Certificate issued
March 30, 1988
Last FAA action
February 1, 1992
Last owner
Fish Robert P (Individual)
Monrovia, CA
Airworthiness
Experimental · Amateur built

NTSB accident and incident record under N239X

LAX89DUG03Accident on March 21, 1989 at Hesperia, CA: fatal, substantial damage (1 fatal).

Aircraft on the NTSB record: Van'S/Fish RV-4 · serial 812

THE PILOT'S FAILURE TO PROPERLY LATCH THE CANOPY PRIOR TO TAKEOFF AND BY ALLOWING THE AIRCRAFT TO ENTER INTO A STALL DURING A CRITICAL PHASE OF FLIGHT AT AN ATTITUDE INSUFFICIENT TO RECOVER SAFELY. A FACTOR IN THE ACCIDENT WAS THE LOSS OF HIS EYEGLASSES WHEN THE CANOPY DEPARTED THE AIRCRAFT.

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