| Tail Number / N-Number | N54580 |
| Type of Reservation | Fee paid |
| Reserving Party Name | UNITED AIRLINES INC |
| Street | C/O LYTLE SOULE & CURLEE 119 N ROBINSON AVE STE 1200 |
| City | OKLAHOMA CITY |
| State | OK |
| Zip Code | 73102-4617 |
| Date Reserved | 2022-09-15 |
| Expiration Date | 2023-07-15 |
Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N54580.
| Tail Number / N-Number | N54580 |
| Manufacturer | DOUGLAS |
| Model | C-54E |
| Manufacturer's Serial Number | 27326 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 60 seats |
| Weight Class | CLASS 3 (20,000+ pounds gross take off weight) |
| Number of Engines | 4 engines |
| Average Cruising Speed | 173 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | SOUTHFORK CORPORATION |
| Street | PO BOX 22763 |
| City | HOUSTON |
| State | TX |
| Zip Code | 77227 |
| Country | US |
| Certificate Issue Date | 1989-07-18 |
| Last Action Date | 2010-06-15 |
| Last Status | Registration Expired – Pending Cancellation |
| Cancellation Date | 2013-05-23 |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N54580.
| Tail Number / N-Number | N54580 |
| Manufacturer | CESSNA |
| Model | T-50 |
| Manufacturer's Serial Number | 3941 |
| 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 | SAINT LOUIS FLYING SERVICE |
| Street | KRATZ ARPT |
| City | SAINT LOUIS |
| State | MO |
| Zip Code | 63101 |
| Region | Central |
| Certificate Issue Date | 1945-11-13 |
| Last Status | Valid Registration |
| Cancellation Date | 1955-05-23 |