| Tail Number / N-Number | N204MC |
| Manufacturer | ROBINSON HELICOPTER COMPANY |
| Model | R44 II |
| Year Built | 2008 |
| Manufacturer's Serial Number | 12596 |
| Aircraft Type | Rotorcraft |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 4 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | LYCOMING |
| Engine Model | IO-540-AE1A5 |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 260 hp (194 kW) |
| Type of Registrant | LLC |
| Owner Name | B-LINE AIR LLC |
| Street | 3187 HIGHWAY 63 |
| City | MALCOM |
| State | IA |
| Zip Code | 50157-8071 |
| Region | Central |
| County | Poweshiek County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 2008-11-25 |
| Certificate Issue Date | 2022-12-12 |
| Last Action Date | 2022-12-12 |
| Expiration Date | 2029-12-31 |
| Status | Valid Registration |
| Mode S Code | 50320765 |
| Mode S Code Hex | A1A1F5 |