| Tail Number / N-Number | N558GJ |
| Manufacturer | BOMBARDIER INC |
| Model | CL-600-2C11 |
| Year Built | 2003 |
| Manufacturer's Serial Number | 10101 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 55 seats |
| Weight Class | CLASS 3 (20,000+ pounds gross take off weight) |
| Engine Manufacturer | GE |
| Engine Model | CF34 SERIES |
| Engine Type | Turbo-fan |
| Number of Engines | 2 engines |
| Thrust per Engine | 9,140 pounds-force (40.7 kN) |
| Total Thrust | 18,280 pounds-force (81.3 kN) |
| Type of Registrant | Corporation |
| Owner Name | UNITED AIRLINES INC |
| Street | 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 | 2003-04-29 |
| Certificate Issue Date | 2023-02-16 |
| Last Action Date | 2023-02-16 |
| Expiration Date | 2030-02-28 |
| Status | Valid Registration |
| Mode S Code | 51616702 |
| Mode S Code Hex | A71DC2 |