| Tail Number / N-Number | N6540D |
| Manufacturer | COLLON-JOHN |
| Model | VARIEZE |
| Year Built | 1963 |
| Manufacturer's Serial Number | 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 | LYCOMING |
| Engine Model | 0-290 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 140 hp (104 kW) |
| Type of Registrant | Individual |
| Owner Name | COLLON JOHN C |
| Street | 1261 SPRINGDALE DR |
| City | LOUISVILLE |
| State | KY |
| Zip Code | 40200 |
| Region | Central |
| County | Jefferson County |
| Country | US |
| Fractional Ownership | No |
| Last Action Date | 1977-01-14 |
| Status | Certificate of Registration has been revoked |
| Mode S Code | 52116762 |
| Mode S Code Hex | A89DF2 |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N6540D.
| Tail Number / N-Number | N6540D |
| Manufacturer | COLLON JOHN C |
| Model | COUGAR MODEL 1 |
| Manufacturer's Serial Number | 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) |
| Number of Engines | 1 engine |
| Type of Registrant | Individual |
| Owner Name | COLLON JOHN C |
| Street | 1261 SPRINGDALE DR |
| City | LOUISVILLE |
| State | KY |
| Zip Code | 40150 |
| Region | Central |
| County | Jefferson County |
| Certificate Issue Date | 1963-01-17 |
| Last Status | Valid Registration |
| Cancellation Date | 1971-10-20 |