Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N4441S.
| Tail Number / N-Number | N4441S |
| Manufacturer | AIR TRACTOR INC |
| Model | AT-302 |
| Year Built | 1977 |
| Manufacturer's Serial Number | 302-0101 |
| 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 | AMA/EXPR |
| Engine Model | UNKNOWN ENG |
| Number of Engines | 1 engine |
| Type of Registrant | Corporation |
| Owner Name | HELM FLYING SERVICE INC |
| Street | PO BOX 251 |
| City | HARVEY |
| State | ND |
| Zip Code | 58341-0251 |
| Country | US |
| Airworthiness Classification | Restricted |
| Airworthiness Date | 1977-12-02 |
| Certificate Issue Date | 1998-04-24 |
| Last Action Date | 2014-09-12 |
| Last Status | Valid Registration |
| Cancellation Date | 2014-10-17 |
| Exported To | COLOMBIA |
| Mode S Code | 51256005 |
| Mode S Code Hex | A55C05 |