| Tail Number / N-Number | N521LA |
| Manufacturer | AIR TRACTOR INC |
| Model | AT-502B |
| Year Built | 2014 |
| Manufacturer's Serial Number | 502B-3011 |
| Aircraft Type | Fixed wing single engine |
| 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 | P&W CANADA |
| Engine Model | PT6A-34AG |
| Engine Type | Turbo-prop |
| Number of Engines | 1 engine |
| Horsepower | 750 hp (560 kW) |
| Type of Registrant | Corporation |
| Owner Name | COLLINSTON AIR SERVICE INC |
| Street | PO BOX 267 |
| City | OAK RIDGE |
| State | LA |
| Zip Code | 71264-0267 |
| Region | Southwestern |
| County | Morehouse Parish |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Restricted |
| Airworthiness Date | 2014-12-15 |
| Certificate Issue Date | 2017-04-14 |
| Last Action Date | 2022-11-28 |
| Expiration Date | 2030-04-30 |
| Status | Valid Registration |
| Mode S Code | 51506640 |
| Mode S Code Hex | A68DA0 |