| Tail Number / N-Number | N637LA |
| Manufacturer | AIR TRACTOR INC |
| Model | AT-502B |
| Year Built | 2001 |
| Manufacturer's Serial Number | 502B-0637 |
| 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 |
| Engine Model | PT6A SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 500 hp (373 kW) |
| Type of Registrant | Corporation |
| Owner Name | MAXWELL FLYING SERVICE INC |
| Street | 907 HIGHWAY 448 |
| City | BENOIT |
| State | MS |
| Zip Code | 38725-9796 |
| Region | Southwestern |
| County | Bolivar County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Restricted |
| Airworthiness Date | 2001-10-09 |
| Certificate Issue Date | 2002-07-08 |
| Last Action Date | 2020-08-26 |
| Expiration Date | 2027-11-30 |
| Status | Valid Registration |
| Mode S Code | 52054270 |
| Mode S Code Hex | A858B8 |