| Tail Number / N-Number | N6677B |
| Manufacturer | CESSNA |
| Model | T210M |
| Year Built | 1978 |
| Manufacturer's Serial Number | 21062816 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 6 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | CONT MOTOR |
| Engine Model | TSIO-520 SER |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 300 hp (224 kW) |
| Average Cruising Speed | 141 miles per hour |
| Type of Registrant | LLC |
| Owner Name | HD MONTANA LLC |
| Street | PO BOX 1840 |
| City | HELENA |
| State | MT |
| Zip Code | 59624-1840 |
| Region | Northwest Mountain |
| County | Lewis and Clark County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1978-09-21 |
| Certificate Issue Date | 2018-06-19 |
| Last Action Date | 2021-02-08 |
| Expiration Date | 2028-06-30 |
| Status | Valid Registration |
| Mode S Code | 52150611 |
| Mode S Code Hex | A8D189 |