| Tail Number / N-Number | N1557 |
| Manufacturer | CORBEN |
| Model | E |
| Year Built | 1968 |
| Manufacturer's Serial Number | GN-1 |
| 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 | CONT MOTOR |
| Engine Model | A&C65 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 65 hp (48 kW) |
| Average Cruising Speed | 82 miles per hour |
| Type of Registrant | Individual |
| Owner Name | KJELSRUD GARY L |
| Street | 5200 13TH ST S |
| City | GREAT FALLS |
| State | MT |
| Zip Code | 59405-8201 |
| Region | Northwest Mountain |
| County | Cascade County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1981-08-28 |
| Certificate Issue Date | 2001-09-18 |
| Last Action Date | 2020-11-17 |
| Expiration Date | 2028-04-30 |
| Status | Valid Registration |
| Mode S Code | 50160017 |
| Mode S Code Hex | A0E00F |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N1557.
| Tail Number / N-Number | N1557 |
| Manufacturer | ADVANCE AIRCRAFT CO |
| Model | WACO 10 |
| Manufacturer's Serial Number | 899 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 3 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 | SUMMIT DRILLING COMPANY |
| Street | GENERAL DELIVERY |
| City | TULSA |
| State | OK |
| Zip Code | 73159 |
| Region | Southwestern |
| County | Cascade County |
| Last Status | Valid Registration |
| Cancellation Date | 1929-08-16 |