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
Records check free · 2 to understand · 3 clear
The public federal record on N661X, read the way a buyer, lender or insurer reads it: FAA registration, prior tail numbers keyed on the serial number, reuse of the tail number, recent registry filings, and the NTSB accident record under this and every earlier registration.
Valid registration to Knutson David J, an individual, certificate issued March 18, 2015, expires March 31, 2028. No fractional interest recorded. [1]
No airworthiness certificate is on file. Usual for a newly registered aircraft, a project, or an aircraft that has not flown since a change of registration; ask for the certificate. [1]
No earlier tail number is recorded against serial ONX0140 for this model in the deregistered file. [2]
N661X was previously assigned to 1 other aircraft: Schempp-Hirth VENTUS-B (serial 79, cancelled March 17, 2005). Histories keyed to the tail number alone can mix aircraft up; this check keys on the serial number. [2]
No bills of sale, loans or releases have reached the registry in recent weeks. The index covers only recent filings; older liens are in the records file. [3]
No NTSB investigation records located under N661X. CLEAR means the query ran and returned nothing, not that nothing ever happened. [4]
These live in the FAA aircraft records file (every document ever filed against the aircraft) and, for larger aircraft, the International Registry. Part of the full report.
AD compliance against the logbooks and flight-activity reconciliation are researched layers of the full report.
- FAA Releasable Aircraft Database, master file, file of October 2, 2026. registry.faa.gov/
- FAA deregistered aircraft file (part of the same download), file of October 2, 2026. registry.faa.gov/
- FAA document index: registry documents received in recent weeks, file of October 2, 2026. registry.faa.gov/
- NTSB aviation accident database (CAROL), records through August 27, 2026. data.ntsb.gov/carol-main-public/basic-search
This automated check reads the public federal record. Nothing here is a legal opinion, an appraisal or a statement about the aircraft's condition; a CLEAR line is a statement about the searched record, not the aircraft.
Source: FAA Civil Aviation Registry, Releasable Aircraft Database, October 2, 2026. See this record on the FAA site · This record as data