| Tail Number / N-Number | N4957K |
| Manufacturer | NAVION |
| Model | NAVION A |
| Manufacturer's Serial Number | NAV-4-1957 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 4 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 | CLENDENIN DUNCAN M |
| Street | 314 CLARENDON RD |
| City | BURLINGAME |
| State | CA |
| Zip Code | 94010-2807 |
| Region | Western-Pacific |
| County | San Mateo County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Certificate Issue Date | 2013-05-30 |
| Last Action Date | 2021-12-14 |
| Expiration Date | 2029-05-31 |
| Status | Valid Registration |
| Mode S Code | 51423002 |
| Mode S Code Hex | A62602 |