Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N78021.
| Tail Number / N-Number | N78021 |
| Manufacturer | KOLB AIRCRAFT CO |
| Model | MARK 3 EXTRA |
| Manufacturer's Serial Number | M3X01-4-00029 |
| 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 |
| Last Action Date | 2003-09-03 |
| Last Status | N-Number assigned as a Non Type Certificated (Amateur) but has not been registered that is pending cancellation |
| Cancellation Date | 2011-06-13 |
| Mode S Code | 52511476 |
| Mode S Code Hex | AA933E |