| Tail Number / N-Number | N921FX |
| Manufacturer | AEROSPATIALE/AERITALIA |
| Model | ATR 42-300 |
| Year Built | 1992 |
| Manufacturer's Serial Number | 319 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 50 seats |
| Weight Class | CLASS 3 (20,000+ pounds gross take off weight) |
| Engine Manufacturer | P&W CANADA |
| Engine Model | PW120 |
| Engine Type | Turbo-prop |
| Number of Engines | 2 engines |
| Horsepower per Engine | 1,800 hp (1,343 kW) |
| Total Horsepower | 3,600 hp (2,686 kW) |
| Type of Registrant | Corporation |
| Owner Name | FEDERAL EXPRESS CORP |
| Street | VP SUPPLEMENTAL AIR OPERATIONS 2955 REPUBLICAN DR |
| City | MEMPHIS |
| State | TN |
| Zip Code | 38118-1547 |
| Region | Central |
| County | Shelby County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2009-05-11 |
| Certificate Issue Date | 2004-05-25 |
| Last Action Date | 2020-04-20 |
| Expiration Date | 2027-08-31 |
| Status | Valid Registration |
| Mode S Code | 53141164 |
| Mode S Code Hex | ACC274 |