| Tail Number / N-Number | N20579 |
| Manufacturer | HELMKAMP EUGENE E |
| Model | RV6A |
| Year Built | 2003 |
| Manufacturer's Serial Number | 23326 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 2 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | LYCOMING |
| Engine Model | 0-320 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 180 hp (134 kW) |
| Kit Manufacturer | VANS AIRCRAFT INC |
| Kit Model | RV-6A |
| Type of Registrant | Individual |
| Owner Name | HELMKAMP EUGENE E |
| Street | 79 BROOKS DR |
| City | BETHALTO |
| State | IL |
| Zip Code | 62010-2183 |
| Region | Great Lakes |
| County | Madison County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2003-07-14 |
| Certificate Issue Date | 2002-03-21 |
| Last Action Date | 2019-05-08 |
| Expiration Date | 2022-10-31 |
| Status | Registration Expired - Pending Cancellation |
| Mode S Code | 50324005 |
| Mode S Code Hex | A1A805 |
Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N20579.
| Tail Number / N-Number | N20579 |
| Manufacturer | ANTONOV |
| Model | AN-2 |
| Manufacturer's Serial Number | 1G19243 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 17 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 1 engine |
| Type of Registrant | Corporation |
| Owner Name | SIBERCON INC |
| Street | PO BOX 202245 |
| City | ANCHORAGE |
| State | AK |
| Zip Code | 99520 |
| County | Madison County |
| Country | US |
| Certificate Issue Date | 1994-03-17 |
| Last Action Date | 1994-03-21 |
| Last Status | Valid Registration |
| Cancellation Date | 1995-04-13 |
| Exported To | BOLIVIA |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N20579.
| Tail Number / N-Number | N20579 |
| Manufacturer | AYRES CORPORATION |
| Model | S2RHG-T34 |
| Manufacturer's Serial Number | T34HG102 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 1 seat |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 1 engine |
| Type of Registrant | Corporation |
| Owner Name | AYRES CORPORATION |
| Street | PO BOX 3090 |
| City | ALBANY |
| State | GA |
| Zip Code | 31706-3090 |
| County | Madison County |
| Country | US |
| Last Action Date | 1998-03-31 |
| Last Status | Aircraft registered to the manufacturer under their Dealer Certificate |
| Cancellation Date | 1998-04-22 |
| Exported To | ARGENTINA |