| Tail Number / N-Number | N4951C |
| Manufacturer | RYAN |
| Model | NAVION L-17B |
| Manufacturer's Serial Number | NAV-4-1784 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 5 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | CONT MOTOR |
| Engine Model | E185 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 205 hp (153 kW) |
| Average Cruising Speed | 120 miles per hour |
| Type of Registrant | Individual |
| Owner Name | CLARK JEFFREY K |
| Street | 20141 HATHAWAY AVE |
| City | HAYWARD |
| State | CA |
| Zip Code | 94541-2362 |
| Region | Western-Pacific |
| County | Alameda County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Certificate Issue Date | 2021-09-22 |
| Last Action Date | 2021-09-22 |
| Expiration Date | 2028-09-30 |
| Status | Valid Registration |
| Mode S Code | 51422451 |
| Mode S Code Hex | A62529 |