Public Record · As of May 5, 2026
N551X
Sonex Aircraft ONEX · 2021 View Type →
Status
Registration Valid
Type
Fixed Wing Single Engine
Engine
AEROCONVER AEROVEE
Last Cert Issue
—
Aircraft Resources
01 / Registration
Filed with the Federal Aviation Administration
Every cell below is a literal field from the FAA Aircraft Registry. Click any value to open the FAA registry record for N551X.
Tail Number
N551X
Serial Number
ONX0137
Make
SONEX AIRCRAFT
Model
ONEX
Year of Manufacture
2021
Mfr / Model Code
05639AQ
Type Aircraft
Fixed Wing Single Engine
Type Engine
Reciprocating
Engines
1
Seats
1
Engine Manufacturer
AEROCONVER
Engine Model
AEROVEE
Horsepower
80 hp
Weight Class
CLASS 1
Certification
Experimental (+1 flag) · code 42
Registrant
HELM THOMAS N · Individual
Address
1335 LORI DR · NEENAH, WI 54956-1998
FAA Region
Central · County 139
Status
Registration Valid
Airworthiness Date
—
Cert Issue Date
—
Expiration Date
—
Last FAA Action
—
Mode S Hex (ICAO24)
A7052F
Mode S (Octal)
51602457
Kit Manufacturer
SONEX AIRCRAFT LLC
Kit Model
ONEX
Live position via ICAO24 A7052F
External services. Live tracks are unaffiliated with TallyAero or the FAA.
02 / NTSB Records
Events on file with the National Transportation Safety Board
-
Mar 6, 2009
Ocala, Florida fatal
-
Jun 6, 1975
BOWLING GREEN, Kentucky
Airport · BWG Bowling Green Warren County Regional Airport
03 / Airworthiness Directives
Applicable to SONEX AIRCRAFT ONEX
Federal Aviation Administration airworthiness directives matched to make and model. Each entry links to the Federal Register publication.
No matching airworthiness directives are on file for this make and model in the Federal Register.
04 / Service Difficulty Reports
FAA SDR filings
The FAA does not currently expose a public API for Service Difficulty Reports. We do not back-fill or paraphrase. Search the FAA SDR portal directly →
05 / Related
More on Sonex Aircraft ONEX in the Atlas
Sonex Aircraft ONEX type page → — 83 registered · 19 NTSB records
Recent NTSB events · this type
-
Feb 6, 2026
Caldwell, Idaho Fatal
Atlas event → -
Jun 25, 2020
Minneapolis, Minnesota None
Atlas event → -
Apr 27, 2008
Madison, Indiana None
Atlas event → -
Aug 30, 2003
Gerlach, Nevada Fatal
Atlas event → -
Mar 12, 1999
KNOXVILLE, Tennessee None
Atlas event →
Search the full US registry → · All airworthiness directives → · Accident & safety surface →
06 / Sources & Methodology
Every fact on this page links to its primary US-government source
- FAA Aircraft Registry →
Refreshed May 5, 2026
Available
- NTSB CAROL →
Refreshed May 5, 2026
Available
- Federal Register (FAA Airworthiness Directives) →
Refreshed May 5, 2026
Available
- FAA Service Difficulty Reports →
Refreshed May 5, 2026
Unavailable
We render only what the agency publishes. Found a factual error? Report it → We acknowledge within 5 business days and resolve within 14.