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Registered aircraft · FAA record as of September 25, 2026
N661X

Knutson David J ONEX

N661X is a Knutson David J ONEX, a fixed-wing airplane with one motor with a piston engine, built in 2015. It has 1 seat. It is registered to an individual in Fall City, Washington. The registration is valid: it was issued on March 18, 2015 and expires on March 31, 2028. No airworthiness certificate is on file, which is normal for drones and for aircraft still being built or tested.

Aircraft

Maker
Knutson David J
Model
ONEX
Serial number
ONX0140
Type
Fixed-wing, single engine
Power
Piston (reciprocating), 1 motor
Seats
1
Year built
2015
Kit
SONEX AIRCRAFT LLC ONEX
Transponder code
A8B9FD (octal 52134775)

Registration

Status
Valid registration
Certificate issued
March 18, 2015
Expires
March 31, 2028
Last FAA action
April 28, 2023
Airworthiness
None on file
FAA region
Northwest Mountain
FAA record id
01172900

Owner as the FAA publishes it

Name
Knutson David J
Type
Individual
Address
36016 SE 49Th St
Fall City, WA 98024-9714

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

2005-03-17Schempp-Hirth VENTUS-B · exported to Australia · Triennial registration form was mailed and has not been returned by the Post Office

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