| Tail Number / N-Number | N4274W |
| Manufacturer | AERO SP Z O O |
| Model | AT-4 LSA |
| Year Built | 2007 |
| Manufacturer's Serial Number | AT4-013 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Light Sport |
| Number of Seats | 2 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | ROTAX |
| Engine Model | 912ULS SERIES |
| Engine Type | 4 Cycle |
| Number of Engines | 1 engine |
| Horsepower | 100 hp (75 kW) |
| Type of Registrant | LLC |
| Owner Name | PLANE AND SIMPLE LLC |
| Street | 4528 W 27TH AVE |
| City | DENVER |
| State | CO |
| Zip Code | 80212-3003 |
| Region | Northwest Mountain |
| County | Denver County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Light Sport |
| Airworthiness Date | 2008-05-09 |
| Certificate Issue Date | 2017-04-21 |
| Last Action Date | 2023-01-22 |
| Expiration Date | 2027-04-30 |
| Status | Valid Registration |
| Mode S Code | 51214231 |
| Mode S Code Hex | A51899 |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N4274W.
| Tail Number / N-Number | N4274W |
| Manufacturer | DAVID GLEN |
| Model | SONERAI 2 |
| Year Built | 2002 |
| Manufacturer's Serial Number | 10995 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 2 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | AMA/EXPR |
| Engine Model | UNKNOWN ENG |
| Number of Engines | 1 engine |
| Type of Registrant | Individual |
| Owner Name | DAVID GLEN E |
| Street | 4274 TATTERSALL DR |
| City | PLAINFIELD |
| State | IN |
| Zip Code | 46168-7924 |
| County | Denver County |
| Country | US |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2002-08-23 |
| Certificate Issue Date | 2002-02-15 |
| Last Action Date | 2002-02-15 |
| Last Status | Valid Registration |
| Cancellation Date | 2004-08-12 |