Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N4720U.
| Tail Number / N-Number | N4720U |
| Manufacturer | BOEING |
| Model | 747-122 |
| Manufacturer's Serial Number | 19881 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 495 seats |
| Weight Class | CLASS 3 (20,000+ pounds gross take off weight) |
| Number of Engines | 4 engines |
| Average Cruising Speed | 450 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | UNITED AIR LINES INC |
| Street | POST OFFICE BOX 66100 |
| City | CHICAGO |
| State | IL |
| Zip Code | 60666 |
| Country | US |
| Certificate Issue Date | 1971-09-02 |
| Last Action Date | 1995-09-20 |
| Last Status | The Triennial Aircraft Registration form was mailed and has not been returned by the Post Office |
| Cancellation Date | 1998-05-26 |
| Mode S Code | 51345363 |
| Mode S Code Hex | A5CAF3 |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N4720U.
| Tail Number / N-Number | N4720U |
| Manufacturer | CESSNA |
| Model | 180G |
| Manufacturer's Serial Number | 18051420 |
| 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 | 121 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | CESSNA AIRCRAFT CO |
| Street | GENERAL DELIVERY |
| City | WICHITA |
| State | KS |
| Zip Code | 67207 |
| Region | Central |
| Last Status | Valid Registration |
| Cancellation Date | 1964-07-17 |
| Exported To | CANADA |
| Mode S Code | 51345363 |
| Mode S Code Hex | A5CAF3 |