| Tail Number / N-Number | N378K |
| Manufacturer | CESSNA |
| Model | 421C |
| Manufacturer's Serial Number | 421C0499 |
| 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) |
| Number of Engines | 2 engines |
| Average Cruising Speed | 90 miles per hour |
| Type of Registrant | LLC |
| Owner Name | AGA AVIATION LLC |
| Street | 16192 COASTAL HWY |
| City | LEWES |
| State | DE |
| Zip Code | 19958-3608 |
| Region | Eastern |
| County | Sussex County |
| Country | US |
| Fractional Ownership | No |
| Certificate Issue Date | 2022-06-03 |
| Last Action Date | 2022-06-03 |
| Expiration Date | 2029-06-30 |
| Status | Valid Registration |
| Mode S Code | 51051144 |
| Mode S Code Hex | A45264 |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N378K.
| Tail Number / N-Number | N378K |
| Manufacturer | RYAN AIRCRAFT |
| Model | B-5 |
| Manufacturer's Serial Number | 215 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 6 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 1 engine |
| Average Cruising Speed | 135 miles per hour |
| Type of Registrant | Individual |
| Owner Name | ALLEN JAMES W |
| Street | 5314 BLACKSTONE AVE |
| City | CHICAGO |
| State | IL |
| Zip Code | 60615 |
| Region | Great Lakes |
| County | Sussex County |
| Certificate Issue Date | 1939-11-28 |
| Last Status | Valid Registration |
| Cancellation Date | 1940-09-10 |