Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N3721.
| Tail Number / N-Number | N3721 |
| Manufacturer | BEECH |
| Model | C-45H |
| Year Built | 1958 |
| Manufacturer's Serial Number | AF-873 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 10 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 2 engines |
| Average Cruising Speed | 165 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | SEABOARD INTERNATIONAL AIRLINES INC |
| Street | 206 NW 4TH AVE |
| City | HALLANDALE |
| State | FL |
| Zip Code | 33009 |
| Region | Southern |
| Certificate Issue Date | 1972-11-07 |
| Last Status | Valid Registration |
| Cancellation Date | 1973-06-26 |
| Mode S Code | 51036664 |
| Mode S Code Hex | A43DB4 |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N3721.
| Tail Number / N-Number | N3721 |
| Manufacturer | TRAVEL AIR |
| Model | 3000 |
| Year Built | 1928 |
| Manufacturer's Serial Number | 300 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 3 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 1 engine |
| Average Cruising Speed | 79 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | ASSOCIATED AIR SERVICES LTD |
| Street | PO BOX 3023 STANFORD UNIVERSITY |
| City | PALO ALTO |
| State | CA |
| Zip Code | 94305 |
| Region | Western-Pacific |
| Certificate Issue Date | 1931-09-24 |
| Last Status | Valid Registration |
| Cancellation Date | 1932-06-13 |
| Mode S Code | 51036664 |
| Mode S Code Hex | A43DB4 |