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Registered aircraft · FAA record as of September 25, 2026
N12SX

Sonex Ltd/Monnett John T Jr SONEX

Valid Wisconsin

N12SX is a Sonex Ltd/Monnett John T Jr SONEX, a fixed-wing airplane with one motor with a piston engine. It has 2 seats. It is registered to Eaa Aviation Foundation INC, a corporation in Oshkosh, Wisconsin. The registration is valid: it was issued on April 20, 2022 and expires on April 30, 2029. It holds an experimental airworthiness certificate for amateur built, dated June 6, 2002.

Aircraft

Maker
Sonex Ltd/Monnett John T Jr
Model
SONEX
Serial number
001
Type
Fixed-wing, single engine
Power
Piston (reciprocating), 1 motor
Seats
2
Year built
Not given
Transponder code
A052FF (octal 50051377)

Registration

Status
Valid registration
Certificate issued
April 20, 2022
Expires
April 30, 2029
Last FAA action
July 28, 2023
Airworthiness
Experimental · Amateur built · June 6, 2002
FAA region
Great Lakes
FAA record id
00147021

Owner as the FAA publishes it

Name
Eaa Aviation Foundation INC
Type
Corporation
Address
PO Box 3086
Oshkosh, WI 54903-3086

Owners can ask the FAA to withhold their name and address from public files. When they do, those fields are blank here as well. How that works.

Documents on file 0

No bills of sale, loans or other documents are indexed against this tail number.

Earlier use of this number 1

—Bell 206A · N-number assigned but not yet registered

Source: FAA Civil Aviation Registry, Releasable Aircraft Database, September 25, 2026. See this record on the FAA site · This record as data