| Tail Number / N-Number | N421UP |
| Manufacturer | BOEING |
| Model | 757-24APF |
| Year Built | 1991 |
| Manufacturer's Serial Number | 25281 |
| 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 | UNITED PARCEL SERVICE CO |
| Street | 1400 N HURSTBOURNE PARKWAY |
| City | LOUISVILLE |
| State | KY |
| Zip Code | 40223 |
| Region | Central |
| County | Jefferson County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1991-09-27 |
| Certificate Issue Date | 1991-11-19 |
| Last Action Date | 2021-07-01 |
| Expiration Date | 2028-11-30 |
| Status | Valid Registration |
| Mode S Code | 51200446 |
| Mode S Code Hex | A50126 |