The U.S. aircraft register, updated daily
Deregistered · FAA record as of October 2, 2026
N81728

N81728 is not currently registered. It was last assigned to a Siefert Walter E LOEHLE 5151 RG. The FAA cancelled the registration on October 31, 1998. The last status on file was "triennial registration form was mailed and has not been returned by the post office". The number has been on and off the register 2 times.

Siefert Walter E LOEHLE 5151 RG cancelled October 31, 1998

Serial number
WS2
Type
Fixed-wing, single engine · Piston (reciprocating)
Year built
—
Last status
Triennial registration form was mailed and has not been returned by the Post Office
Certificate issued
August 22, 1995
Last FAA action
August 14, 2001
Last owner
Siefert Walter (Individual)
Shelbyville, IN
Airworthiness
None on file

Beech F33A cancelled April 23, 1991

Serial number
CE1571
Type
Fixed-wing, single engine · Piston (reciprocating)
Year built
—
Last status
Valid registration
Exported to
Spain
Certificate issued
April 2, 1991
Last FAA action
April 2, 1991
Last owner
Euroflight INC (Corporation)
Wichita, KS
Airworthiness
None on file

NTSB accident and incident record under N81728

CHI97LA163Accident on June 10, 1997 at Shelbyville, IN: fatal, destroyed (1 fatal).

Aircraft on the NTSB record: Siefert 5151RG · serial WS2

the cause of the accident is undetermined.

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