| Tail Number / N-Number | N4SK |
| Manufacturer | NAVION |
| Model | NAVION B |
| Year Built | 1947 |
| Manufacturer's Serial Number | NAV-4-554B |
| 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 | I0-470 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 260 hp (194 kW) |
| Average Cruising Speed | 126 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | SIERRA KILO CORPORATION |
| Street | C/O MS JEAN K PETTIBONE 1158 FIFTH AVE |
| City | NEW YORK |
| State | NY |
| Zip Code | 10029 |
| Region | Eastern |
| County | New York County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1955-10-07 |
| Certificate Issue Date | 1984-04-11 |
| Last Action Date | 2022-12-06 |
| Expiration Date | 2030-03-31 |
| Status | Valid Registration |
| Mode S Code | 51124611 |
| Mode S Code Hex | A4A989 |