| Tail Number / N-Number | N646H |
| Manufacturer | ENSTROM HELICOPTER CORP |
| Model | 280C |
| Year Built | 1977 |
| Manufacturer's Serial Number | 1099 |
| Aircraft Type | Rotorcraft |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 3 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | LYCOMING |
| Engine Model | HI0-360 SER |
| Engine Type | Turbo-shaft |
| Number of Engines | 1 engine |
| Horsepower | 205 hp (153 kW) |
| Type of Registrant | Co-Ownership |
| Owner Name | HOEFT CLIFF A |
| Other Names |
|
| Street | BOX 427 |
| City | PILOT ROCK |
| State | OR |
| Zip Code | 97868 |
| Region | Northwest Mountain |
| County | Umatilla County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1997-02-10 |
| Certificate Issue Date | 1993-12-20 |
| Last Action Date | 2021-08-18 |
| Expiration Date | 2029-01-31 |
| Status | Valid Registration |
| Mode S Code | 52076064 |
| Mode S Code Hex | A87C34 |