Cst & Sons LLC
Registered owner of 5 aircraft, based mainly in South Barrington, Illinois (llc). First registration on file December 23, 2016, most recent February 14, 2023.
Where the aircraft are in the air, on the ground, parked, or not heard lately · refreshed every half minute
None in the air, 4 not heard lately, 1 not heard since the site began listening.
Positions from the volunteer receiver network: an aircraft is "parked" when it was last heard on the ground within 7 days (it may have moved under a hangar roof or flown with the transponder off); "not heard" means nothing has been received since the date shown. Aircraft whose owners asked the FAA not to be displayed are left out.
In the air now from the volunteer receiver network
None of this fleet's aircraft is in the air over the United States right now, as far as the network can hear. See them on the live map, highlighted, each one followable with its trail. Aircraft whose owners asked the FAA not to be displayed are left out; aircraft this company flies but does not own appear under its callsign on the live map, not here.
Models top 12
Models, as a table
| aircraft | |
|---|---|
| Robinson Helicopter R66 | 4 |
| Robinson Helicopter R44 II | 1 |
Connections how this fleet links to the rest of the register
- Robinson R66 4 in this fleet
- Robinson R44 1 in this fleet
- Robinson Helicopter 5 in this fleet
- South Barrington, IL 5 aircraft registered here
- Illinois 8,061 aircraft registered
- N4174L · Charles City, IA · 2023-07-26
The whole map of how records connect · these connections as data: /graph/fleet/cst-sons-llc.json.
Aircraft newest registrations first
| Tail no. | Maker and model | Owner and base | Certificate | Registered | Status | Where it is |
|---|---|---|---|---|---|---|
| N226AG | Robinson Helicopter R66 |
Cst & Sons LLC South Barrington, Illinois |
Standard | 2023-02-14 | ValidFAA registration status code V: Valid registration. All codes | not heard not heard since the site began listening on 7 October 2026 |
| N519LT | Robinson Helicopter R66 |
Cst & Sons LLC South Barrington, Illinois |
Standard | 2021-06-14 | ValidFAA registration status code V: Valid registration. All codes | not heard not heard since yesterday at 4:46 pm, in the air then |
| N66DV | Robinson Helicopter R66 |
Cst & Sons LLC South Barrington, Illinois |
Standard | 2021-04-13 | ValidFAA registration status code V: Valid registration. All codes | not heard not heard since 8 October 2026, in the air then |
| N89CC | Robinson Helicopter R66 |
Cst & Sons LLC South Barrington, Illinois |
Standard | 2019-01-17 | ValidFAA registration status code V: Valid registration. All codes | not heard not heard since 23 October 2026, last near M Graham Clark Downtown Airport, in the air then |
| N4174L | Robinson Helicopter R44 II |
Cst & Sons LLC South Barrington, Illinois |
Standard | 2016-12-23 | ValidFAA registration status code V: Valid registration. All codes | not heard not heard since 15 October 2026, last near Auburn/Dekalb Executive, in the air then |
Owner name and addresses as the FAA publishes them. Source: FAA Civil Aviation Registry, November 3, 2026.