The U.S. aircraft register, updated daily
Deregistered · FAA record as of October 2, 2026
N557SX

N557SX is not currently registered. It was last assigned to a Ruggles Robert SONEX built in 2006. The FAA cancelled the registration on July 27, 2010. The last status on file was "triennial registration form was mailed and has not been returned by the post office".

Ruggles Robert SONEX cancelled July 27, 2010

Serial number
0557
Type
Fixed-wing, single engine · Piston (reciprocating)
Year built
2006
Last status
Triennial registration form was mailed and has not been returned by the Post Office
Certificate issued
June 29, 2007
Last FAA action
June 15, 2010
Last owner
Wren Ronnie D (Individual)
Leonard, TX
Airworthiness
Experimental · Amateur built

NTSB accident and incident record under N557SX

DFW07LA183Accident on August 15, 2007 at Bonham, TX: fatal, substantial damage (1 fatal).

Aircraft on the NTSB record: Huggles Sonex · serial 0557

The pilot's failure to maintain control of the airplane on take off, which resulted in an inadvertent stall and subsequent collision with terrain.

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