| Tail Number / N-Number | N166DS |
| Manufacturer | LANCAIR COMPANY |
| Model | LC42-550FG |
| Manufacturer's Serial Number | 42070 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 4 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 1 engine |
| Type of Registrant | Individual |
| Owner Name | STURGIS SHELDON |
| Street | 1819 MOUNT CURVE AVE |
| City | MINNEAPOLIS |
| State | MN |
| Zip Code | 55403-1019 |
| Region | Great Lakes |
| County | Hennepin County |
| Country | US |
| Fractional Ownership | No |
| Certificate Issue Date | 2014-07-31 |
| Last Action Date | 2022-10-26 |
| Expiration Date | 2027-07-31 |
| Status | Valid Registration |
| Mode S Code | 50204124 |
| Mode S Code Hex | A10854 |