| Tail Number / N-Number | N4289K |
| Manufacturer | RYAN |
| Model | NAVION |
| Year Built | 1948 |
| Manufacturer's Serial Number | NAV-4-1289 |
| 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 | E225 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 225 hp (168 kW) |
| Average Cruising Speed | 126 miles per hour |
| Type of Registrant | Individual |
| Owner Name | BOST TIMOTHY B |
| Street | 203 BERTH # 8 |
| City | WILMINGTON |
| State | CA |
| Zip Code | 90744-6726 |
| Region | Western-Pacific |
| County | Los Angeles County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1956-04-25 |
| Certificate Issue Date | 2019-09-09 |
| Last Action Date | 2022-10-20 |
| Expiration Date | 2029-09-30 |
| Status | Valid Registration |
| Mode S Code | 51216364 |
| Mode S Code Hex | A51CF4 |