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Registered aircraft · FAA record as of September 25, 2026
N141SX

Monnett John T Jr SUB SONEX

Valid Wisconsin

N141SX is a Monnett John T Jr SUB SONEX, a fixed-wing airplane with one motor with turbojet engines. It has 1 seat. It is registered to Eaa Aviation Foundation INC, a corporation in Oshkosh, Wisconsin. The registration is valid: it was issued on September 17, 2024 and expires on September 30, 2031. It holds an experimental airworthiness certificate for research and development, dated February 3, 2010.

Aircraft

Maker
Monnett John T Jr
Model
SUB SONEX
Serial number
001
Type
Fixed-wing, single engine
Power
Turbojet, 1 motor
Seats
1
Year built
Not given
Transponder code
A0A80D (octal 50124015)

Registration

Status
Valid registration
Certificate issued
September 17, 2024
Expires
September 30, 2031
Last FAA action
September 17, 2024
Airworthiness
Experimental · Research and development · February 3, 2010
FAA region
Great Lakes
FAA record id
01001094

Owner as the FAA publishes it

Name
Eaa Aviation Foundation INC
Type
Corporation
Address
3000 Poberezny Rd
Oshkosh, WI 54902-8939

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.

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