| Tail Number / N-Number | N8521P |
| Manufacturer | AIR TRACTOR INC |
| Model | AT-402B |
| Year Built | 2004 |
| Manufacturer's Serial Number | 402B-1148 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 2 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | P&W |
| Engine Model | PT6A SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 500 hp (373 kW) |
| Type of Registrant | Corporation |
| Owner Name | THOMAS AIR SERVICE INC |
| Street | 1604 LIFESONG CIR |
| City | HASTINGS |
| State | NE |
| Zip Code | 68901 |
| Region | Central |
| County | Adams County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Restricted |
| Airworthiness Date | 2004-02-13 |
| Certificate Issue Date | 2009-02-03 |
| Last Action Date | 2022-09-12 |
| Expiration Date | 2029-11-30 |
| Status | Valid Registration |
| Mode S Code | 52730517 |
| Mode S Code Hex | ABB14F |