| Tail Number / N-Number | N784MA |
| Manufacturer | RAYTHEON AIRCRAFT COMPANY |
| Model | 390 |
| Manufacturer's Serial Number | RB-141 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 8 seats |
| Weight Class | CLASS 2 (12,500 - 19,999 pounds gross take off weight) |
| Number of Engines | 2 engines |
| Type of Registrant | LLC |
| Owner Name | SIEN AIR LLC |
| Street | 725 SW HIGGINS AVE STE C |
| City | MISSOULA |
| State | MT |
| Zip Code | 59803-1420 |
| Region | Northwest Mountain |
| County | Missoula County |
| Country | US |
| Fractional Ownership | No |
| Certificate Issue Date | 2021-01-07 |
| Last Action Date | 2021-04-19 |
| Expiration Date | 2028-01-31 |
| Status | Valid Registration |
| Mode S Code | 52520166 |
| Mode S Code Hex | AAA076 |