| Tail Number / N-Number | N559UA |
| Manufacturer | BOEING |
| Model | 757-222 |
| Year Built | 1992 |
| Manufacturer's Serial Number | 26657 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 178 seats |
| Weight Class | CLASS 3 (20,000+ pounds gross take off weight) |
| Engine Manufacturer | P & W |
| Engine Model | PW2040 |
| Engine Type | Turbo-fan |
| Number of Engines | 2 engines |
| Thrust per Engine | 40,900 pounds-force (181.9 kN) |
| Total Thrust | 81,800 pounds-force (363.9 kN) |
| Type of Registrant | Corporation |
| Owner Name | UNICAL AVIATION INC |
| Street | 680 S LEMON AVE |
| City | CITY OF INDUSTRY |
| State | CA |
| Zip Code | 91789-2934 |
| Region | Western-Pacific |
| County | Los Angeles County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1992-06-06 |
| Certificate Issue Date | 2020-05-26 |
| Last Action Date | 2023-01-22 |
| Expiration Date | 2027-05-31 |
| Status | Valid Registration |
| Mode S Code | 51621235 |
| Mode S Code Hex | A7229D |