| Tail Number / N-Number | N57439 |
| Manufacturer | BOEING |
| Model | 737-924ER |
| Year Built | 2009 |
| Manufacturer's Serial Number | 33534 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 191 seats |
| Weight Class | CLASS 3 (20,000+ pounds gross take off weight) |
| Engine Manufacturer | CFM INTL |
| Engine Model | CFM56-7B26/3 |
| Engine Type | Turbo-fan |
| Number of Engines | 2 engines |
| Thrust per Engine | 25,900 pounds-force (115.2 kN) |
| Total Thrust | 51,800 pounds-force (230.4 kN) |
| Type of Registrant | Corporation |
| Owner Name | UNITED AIRLINES INC |
| Street | ATTN: TREASURER WILLIS TOWER 233 S WACKER DR |
| City | CHICAGO |
| State | IL |
| Zip Code | 60606-7147 |
| Region | Great Lakes |
| County | Cook County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 2009-08-07 |
| Certificate Issue Date | 2009-08-10 |
| Last Action Date | 2020-12-18 |
| Expiration Date | 2028-01-31 |
| Status | Valid Registration |
| Mode S Code | 51660050 |
| Mode S Code Hex | A76028 |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N57439.
| Tail Number / N-Number | N57439 |
| Manufacturer | BOEING |
| Model | A75N1(PT17) |
| Year Built | 1941 |
| Manufacturer's Serial Number | 75-1985 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 2 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | P&W |
| Engine Model | R-985 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 450 hp (336 kW) |
| Average Cruising Speed | 93 miles per hour |
| Type of Registrant | Co-Ownership |
| Owner Name | SALE REPORTED |
| Street | PO BIN V |
| City | WASCO |
| State | CA |
| Zip Code | 93280 |
| County | Cook County |
| Country | US |
| Airworthiness Classification | Restricted |
| Airworthiness Date | 1956-07-16 |
| Last Action Date | 1981-06-06 |
| Last Status | Sale reported |
| Cancellation Date | 2006-03-21 |
| Exported To | CANADA |