| Tail Number / N-Number | N584ST |
| Manufacturer | PILATUS |
| Model | PC-12/45 |
| Year Built | 2003 |
| Manufacturer's Serial Number | 509 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 12 seats |
| Weight Class | CLASS 2 (12,500 - 19,999 pounds gross take off weight) |
| Engine Manufacturer | P&W |
| Engine Model | PT6A SER |
| Engine Type | Turbo-prop |
| Number of Engines | 1 engine |
| Horsepower | 750 hp (560 kW) |
| Type of Registrant | Corporation |
| Owner Name | NORTHEAST MONTANA STAT AIR AMBULANCE COOPERATIVE |
| Street | 81 AIRPORT RD |
| City | GLASGOW |
| State | MT |
| Zip Code | 59230-2842 |
| Region | Northwest Mountain |
| County | Valley County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 2003-08-25 |
| Certificate Issue Date | 2017-08-03 |
| Last Action Date | 2020-03-12 |
| Expiration Date | 2027-08-31 |
| Status | Valid Registration |
| Mode S Code | 51703146 |
| Mode S Code Hex | A78666 |