| Tail Number / N-Number | N7251U |
| Type of Reservation | Fee paid |
| Reserving Party Name | SOUTHWEST AIRLINES CO |
| Street | DAL2MX CERTIFICATE COMPLIANCE 2832 SHORECREST DR |
| City | DALLAS |
| State | TX |
| Zip Code | 75235-1917 |
| Date Reserved | 2021-06-30 |
| Expiration Date | 2023-04-30 |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N7251U.
| Tail Number / N-Number | N7251U |
| Manufacturer | BOEING |
| Model | 727-222 |
| Year Built | 1977 |
| Manufacturer's Serial Number | 21398 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 134 seats |
| Weight Class | CLASS 3 (20,000+ pounds gross take off weight) |
| Engine Manufacturer | P & W |
| Engine Model | JT8D-9 SER |
| Engine Type | Turbo-jet |
| Number of Engines | 3 engines |
| Thrust per Engine | 14,500 pounds-force (64.5 kN) |
| Total Thrust | 43,500 pounds-force (193.5 kN) |
| Average Cruising Speed | 435 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | UNITED AIR LINES INC |
| Street | PO BOX 66100 |
| City | CHICAGO |
| State | IL |
| Zip Code | 60666-0100 |
| Country | US |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1977-10-21 |
| Certificate Issue Date | 1979-02-27 |
| Last Action Date | 2001-07-17 |
| Last Status | The Triennial Aircraft Registration form was mailed and has not been returned by the Post Office |
| Cancellation Date | 2003-01-06 |