| Tail Number / N-Number | N4440K |
| Manufacturer | CESSNA |
| Model | 421B |
| Year Built | 1974 |
| Manufacturer's Serial Number | 421B0567 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 8 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | CONT MOTOR |
| Engine Model | TSIO-520 SER |
| Engine Type | Reciprocating |
| Number of Engines | 2 engines |
| Horsepower per Engine | 300 hp (224 kW) |
| Total Horsepower | 600 hp (448 kW) |
| Average Cruising Speed | 172 miles per hour |
| Type of Registrant | LLC |
| Owner Name | KATE & JENNIFER AIRLINES LLC |
| Street | 8127 BAY DR |
| City | TAMPA |
| State | FL |
| Zip Code | 33635-9732 |
| Region | Southern |
| County | Hillsborough County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1974-01-30 |
| Certificate Issue Date | 2022-11-04 |
| Last Action Date | 2022-11-04 |
| Expiration Date | 2029-11-30 |
| Status | Valid Registration |
| Mode S Code | 51255733 |
| Mode S Code Hex | A55BDB |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N4440K.
| Tail Number / N-Number | N4440K |
| Manufacturer | RYAN |
| Model | NAVION |
| Manufacturer's Serial Number | NAV-4-1440 |
| 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 | SCHOLEFIELD W B |
| Street | 1081 WESTWOOD BOULEVARD |
| City | LOS ANGELES |
| State | CA |
| Zip Code | 90001 |
| Region | Western-Pacific |
| County | Hillsborough County |
| Certificate Issue Date | 1959-04-24 |
| Last Status | Valid Registration |
| Cancellation Date | 1965-05-20 |