The U.S. aircraft register, updated daily
Deregistered · FAA record as of October 2, 2026
N4085X

N4085X is not currently registered. It was last assigned to an Aero Commander 100-180 built in 1970. The FAA cancelled the registration on April 17, 2013. The last status on file was "registration expired, pending cancellation".

Aero Commander 100-180 cancelled April 17, 2013

Serial number
5185
Type
Fixed-wing, single engine · Piston (reciprocating)
Year built
1970
Last status
Registration expired, pending cancellation
Certificate issued
October 20, 1983
Last FAA action
October 11, 1986
Last owner
Young Brewer H JR (Individual)
Parker, CO
Airworthiness
Standard · Normal

NTSB accident and incident record under N4085X

DEN84FA188Accident on June 19, 1984 at Franktown, CO: fatal, destroyed (1 fatal).

Aircraft on the NTSB record: Rockwell 100-180 · serial 5185

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