Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N4628N.
| Tail Number / N-Number | N4628N |
| Manufacturer | CESSNA |
| Model | T-50 |
| Manufacturer's Serial Number | 4208 |
| Aircraft Type | Fixed wing multi 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 | 2 engines |
| Average Cruising Speed | 131 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | SOUTHWESTERN AIRWAYS |
| Street | PO BOX 315 |
| City | OKC |
| State | OK |
| Zip Code | 73159 |
| Region | Southwestern |
| Certificate Issue Date | 1946-12-27 |
| Last Status | Valid Registration |
| Cancellation Date | 1948-06-15 |
| Mode S Code | 51322206 |
| Mode S Code Hex | A5A486 |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N4628N.
| Tail Number / N-Number | N4628N |
| Manufacturer | SWINGER JOSEPH L |
| Model | QUICKSILVER MX II |
| Manufacturer's Serial Number | 1566 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 2 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 1 engine |
| Last Action Date | 1984-01-17 |
| Last Status | N-Number assigned, has not been registered and is pending cancellation |
| Cancellation Date | 2011-04-25 |
| Mode S Code | 51322206 |
| Mode S Code Hex | A5A486 |