| Tail Number / N-Number | N4273Y |
| Manufacturer | AERO SP Z O O |
| Model | AT-4 LSA |
| Year Built | 2007 |
| Manufacturer's Serial Number | AT4-012 |
| 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 | Individual |
| Owner Name | TRUEBA THOMAS A |
| Street | 5704 BULFORD PL |
| City | QUARTZ HILL |
| State | CA |
| Zip Code | 93536-3159 |
| Region | Western-Pacific |
| County | Los Angeles County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Light Sport |
| Airworthiness Date | 2008-05-09 |
| Certificate Issue Date | 2020-08-13 |
| Last Action Date | 2020-08-13 |
| Expiration Date | 2027-08-31 |
| Status | Valid Registration |
| Mode S Code | 51214170 |
| Mode S Code Hex | A51878 |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N4273Y.
| Tail Number / N-Number | N4273Y |
| Manufacturer | RAVEN |
| Model | S55A |
| Year Built | 1983 |
| Manufacturer's Serial Number | S55A-982 |
| Aircraft Type | Balloon |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 1 seat |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | NONE |
| Engine Model | NONE |
| Number of Engines | 0 engines |
| Average Cruising Speed | 60 miles per hour |
| Type of Registrant | Individual |
| Owner Name | HARTPENCE JOE K |
| Street | 13948 SW 42ND ST |
| City | YUKON |
| State | OK |
| Zip Code | 73099-7202 |
| County | Los Angeles County |
| Country | US |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1983-04-08 |
| Certificate Issue Date | 1998-10-13 |
| Last Action Date | 2001-10-16 |
| Last Status | The Triennial Aircraft Registration form was mailed and has not been returned by the Post Office |
| Cancellation Date | 2003-12-23 |