The U.S. aircraft register, updated daily
Deregistered · FAA record as of October 2, 2026
N51FB

N51FB is not currently registered. It was last assigned to a Frederick Bob Jr TITAN T-51 MUSTANG built in 2015. The FAA cancelled the registration on August 2, 2018. The last status on file was "sale reported, canceled".

Frederick Bob Jr TITAN T-51 MUSTANG cancelled August 2, 2018

Serial number
MO4XXXS0HK0052
Type
Fixed-wing, single engine · Four-cycle piston
Year built
2015
Last status
Sale reported, canceled
Certificate issued
—
Last FAA action
September 14, 2017
Last owner
Sale Reported (Individual)
Haiku, HI
Airworthiness
Experimental · Amateur built

NTSB accident and incident record under N51FB

WPR17LA121Accident on June 4, 2017 at Goodyear, AZ: no injuries, substantial damage.

Aircraft on the NTSB record: Bob Frederick Titan T-51 · serial MO4XXXS0HK0052

Failure of the propeller speed reduction gearbox input drive gear during the airplane’s initial climb for reasons that could not be determined due to extensive damage.

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