Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N4491K.
| Tail Number / N-Number | N4491K |
| Manufacturer | RYAN |
| Model | NAVION |
| Manufacturer's Serial Number | NAV-4-1491 |
| 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) |
| Number of Engines | 1 engine |
| Average Cruising Speed | 126 miles per hour |
| Type of Registrant | Individual |
| Owner Name | KELLER HARRY J |
| Street | 32550 ANN ARBOR TRL |
| City | WESTLAND |
| State | MI |
| Zip Code | 48185 |
| Region | Great Lakes |
| Certificate Issue Date | 1971-02-02 |
| Last Status | Valid Registration |
| Cancellation Date | 1977-03-04 |
| Mode S Code | 51267221 |
| Mode S Code Hex | A56E91 |