Hylio AG 230
N121ST is a Hylio AG 230, a rotorcraft powered by electric motors (a helicopter or multicopter). It is unmanned. It is registered to an individual in Lenox, Iowa. The registration is valid: it was issued on May 2, 2025 and expires on May 31, 2032. No airworthiness certificate is on file, which is normal for drones and for aircraft still being built or tested.
Aircraft
- Maker
- Hylio (United States)FAA spelling: HYLIO INC
- Model
- AG 230 · all AG 230s and related versions
- Serial number
- 17906100252
- Type
- Rotorcraft
- Power
- Electric, 8 motors
- Seats
- 0
- Year built
- Not given
- Transponder code
- A0590B (octal 50054413)
Registration
- Status
- Valid registration
- Certificate issued
- May 2, 2025
- Expires
- May 31, 2032
- Last FAA action
- May 2, 2025
- Airworthiness
- None on file
- FAA region
- Central
- FAA record id
- 01483593
Owner as the FAA publishes it
- Name
- Trost Scot A
- Type
- Individual
- Address
- 1148 State Highway 25
Lenox, IA 50851-8807
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 2
Records check free · 3 to understand · 2 clear
The public federal record on N121ST, 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 Trost Scot A, an individual, certificate issued May 2, 2025, expires May 31, 2032. 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 17906100252 for this model in the deregistered file. [2]
N121ST was previously assigned to 2 other aircraft: Poellien Gary R ADVCD AVIA BUCCNR SX (serial BUC.SX.0027, cancelled May 13, 2015); Hacker Stephen W GLASAIR III (serial 3157, cancelled February 27, 1992). 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]
1 NTSB record under N121ST: Accident on October 27, 1991 at Scottsdale, AZ: fatal, destroyed (2 fatal). Details below. [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.
NTSB records 1
Aircraft on the NTSB record: Glassair III · operated under 091
THE CERTIFIED FLIGHT INSTRUCTORS DECISION TO FLY INTO KNOWN FORECAST WEATHER CONDITIONS SPECIFICALLY PROHIBITED BY THE AIRPLANE'S OWNER'S MANUAL AND DECISION TO ALLOW AN UNQUALIFIED PILOT WITH LIMITED INSTRUMENT FLIGHT EXPERIENCE TO OCCUPY THE LEFT SEAT BEHIND THE FLIGHT INSTRUMENTS WHICH SUBSEQUENTLY RESULTED IN A INFLIGHT LOSS OF CONTROL. CONTRIBUTING TO THE ACCIDENT WAS THE CERTIFIED FLIGHT INSTRUCTOR'S INADEQUATE SUPERVISION OF THE UNQUALIFIED PILOT.
Search the NTSB's CAROL system for LAX92LA026 for the docket and final report. Open CAROL
- 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