The U.S. aircraft register, updated daily
Deregistered · FAA record as of October 2, 2026
N23KS

N23KS is not currently registered. It was last assigned to a Grubert David W KIS TRI-R TR1 built in 1993. The FAA cancelled the registration on December 22, 2014. The last status on file was "registration expired, pending cancellation". The number has been on and off the register 2 times.

N23KS is reserved by Calico Aviation LLC since February 14, 2025. Reservation type: Fee paid. An expiration notice was issued on December 14, 2026.

Grubert David W KIS TRI-R TR1 cancelled December 22, 2014

Serial number
023
Type
Fixed-wing, single engine · Piston (reciprocating)
Year built
1993
Last status
Registration expired, pending cancellation
Certificate issued
December 3, 1993
Last FAA action
January 20, 2009
Last owner
Grubert David W (Co-owned)
Tacoma, WA
Airworthiness
Experimental · Amateur built

Sikorsky S-55A cancelled July 17, 1979

Serial number
S55A-214
Type
Rotorcraft · Piston (reciprocating)
Year built
—
Last status
Valid registration
Exported to
Canada
Certificate issued
April 19, 1975
Last FAA action
—
Last owner
Withheld (Corporation)
Airworthiness
None on file

NTSB accident and incident record under N23KS

SEA03FA041Accident on February 24, 2003 at Puyallup, WA: fatal, destroyed (2 fatal).

Aircraft on the NTSB record: Grubert KIS TRI-R TR-1 · serial 23

The pilot-in-command's failure to maintain adequate flying airspeed during the turn from crosswind to downwind resulting in an inadvertent stall/spin and subsequent collision with terrain (ground).

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