| Tail Number / N-Number | N551NW |
| Manufacturer | BOEING |
| Model | 757-251 |
| Year Built | 2001 |
| Manufacturer's Serial Number | 26498 |
| 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 | PW2037 |
| Engine Type | Turbo-fan |
| Number of Engines | 2 engines |
| Thrust per Engine | 37,530 pounds-force (166.9 kN) |
| Total Thrust | 75,060 pounds-force (333.9 kN) |
| Type of Registrant | Corporation |
| Owner Name | DELTA AIR LINES INC |
| Street | 1775 M H JACKSON SERVICE RD DEPT 595 AIRCRAFT REGISTRATIONS |
| City | ATLANTA |
| State | GA |
| Zip Code | 30354-3743 |
| Region | Southern |
| County | Fulton County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 2001-06-30 |
| Certificate Issue Date | 2009-12-31 |
| Last Action Date | 2022-06-10 |
| Expiration Date | 2029-06-30 |
| Status | Valid Registration |
| Mode S Code | 51602143 |
| Mode S Code Hex | A70463 |