| Tail Number / N-Number | N8644K |
| Manufacturer | STINSON |
| Model | 108-1 |
| Year Built | 1947 |
| Manufacturer's Serial Number | 1081644 |
| Aircraft Type | Fixed wing single engine |
| 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 | FRANKLIN |
| Engine Model | 6A4150 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 150 hp (112 kW) |
| Average Cruising Speed | 84 miles per hour |
| Type of Registrant | LLC |
| Owner Name | SEATTLE SEAPLANES LLC |
| Street | 1325 FAIRVIEW AVE E |
| City | SEATTLE |
| State | WA |
| Zip Code | 98102-3714 |
| Region | Northwest Mountain |
| County | King County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1960-11-30 |
| Certificate Issue Date | 2019-02-06 |
| Last Action Date | 2021-10-02 |
| Expiration Date | 2029-02-28 |
| Status | Valid Registration |
| Mode S Code | 52760241 |
| Mode S Code Hex | ABE0A1 |