Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N1666C.
| Tail Number / N-Number | N1666C |
| Manufacturer | AERO COMMANDER |
| Model | 680-F |
| Year Built | 1961 |
| Manufacturer's Serial Number | 680F-1088-66 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 7 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | LYCOMING |
| Engine Model | IGSO-540-B1A |
| Engine Type | Reciprocating |
| Number of Engines | 2 engines |
| Horsepower per Engine | 380 hp (283 kW) |
| Total Horsepower | 760 hp (567 kW) |
| Average Cruising Speed | 188 miles per hour |
| Type of Registrant | Individual |
| Owner Name | HELIZON ROGER |
| Street | 547 WOODBLUFF |
| City | DUARTE |
| State | CA |
| Zip Code | 91010 |
| Country | US |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1961-07-31 |
| Certificate Issue Date | 1999-05-07 |
| Last Action Date | 2008-05-20 |
| Last Status | Registration Expired – Pending Cancellation |
| Cancellation Date | 2012-08-10 |
| Mode S Code | 50205445 |
| Mode S Code Hex | A10B25 |