Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N4556S.
| Tail Number / N-Number | N4556S |
| Manufacturer | AIR TRACTOR INC |
| Model | AT-502 |
| Year Built | 1991 |
| Manufacturer's Serial Number | 502-0137 |
| 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 SER |
| Engine Type | Turbo-prop |
| Number of Engines | 1 engine |
| Horsepower | 750 hp (560 kW) |
| Type of Registrant | Corporation |
| Owner Name | THIEL AIR CARE INC |
| Street | PO BOX 605 |
| City | CHOWCHILLA |
| State | CA |
| Zip Code | 93610-0605 |
| Country | US |
| Airworthiness Classification | Restricted |
| Airworthiness Date | 1991-05-07 |
| Certificate Issue Date | 2007-06-05 |
| Last Action Date | 2011-11-10 |
| Last Status | Registration Expired - Pending Cancellation |
| Cancellation Date | 2018-01-04 |
| Mode S Code | 51303752 |
| Mode S Code Hex | A587EA |