The U.S. aircraft register, updated daily
Deregistered · FAA record as of October 2, 2026
N5666S

N5666S is not currently registered. It was last assigned to a Beech A23-19. The last status on file was "n-number assigned but not yet registered".

Beech A23-19 cancelled date not given

Serial number
MB103
Type
Fixed-wing, single engine · Piston (reciprocating)
Year built
—
Last status
N-number assigned but not yet registered
Certificate issued
—
Last FAA action
—
Last owner
Withheld
Airworthiness
None on file

NTSB accident and incident record under N5666S

CHI86LA016Accident on October 24, 1985 at Decatur, IN: minor injuries, destroyed.

Aircraft on the NTSB record: Beech A23.19 · serial MB103

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