Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N557Y.
| Tail Number / N-Number | N557Y |
| Manufacturer | STITS SKYCOUPE |
| Model | EC-1 |
| Manufacturer's Serial Number | 1962 |
| 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 |
| Average Cruising Speed | 87 miles per hour |
| Type of Registrant | Individual |
| Owner Name | DOBARGANES RICHARD T |
| Street | BOX 2079 |
| City | HOUSTON |
| State | TX |
| Zip Code | 77004 |
| Region | Southwestern |
| Certificate Issue Date | 1978-06-07 |
| Last Status | Valid Registration |
| Cancellation Date | 1981-11-09 |
| Mode S Code | 51615622 |
| Mode S Code Hex | A71B92 |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N557Y.
| Tail Number / N-Number | N557Y |
| Manufacturer | REARWIN JUNIOR |
| Model | 4000 |
| Manufacturer's Serial Number | 212 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 2 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 1 engine |
| Average Cruising Speed | 86 miles per hour |
| Type of Registrant | Partnership |
| Owner Name | KIOWA FLYING CLUB |
| Street | GENERAL DELIVERY |
| City | KIOWA |
| State | KS |
| Zip Code | 67070 |
| Region | Central |
| Certificate Issue Date | 1939-09-20 |
| Last Status | Valid Registration |
| Cancellation Date | 1940-09-15 |
| Mode S Code | 51615622 |
| Mode S Code Hex | A71B92 |