| Tail Number / N-Number | N4221C |
| Manufacturer | STINSON |
| Model | 108-3 |
| Manufacturer's Serial Number | 108-5221 |
| 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 | 6A4165 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 165 hp (123 kW) |
| Average Cruising Speed | 94 miles per hour |
| Type of Registrant | Co-Ownership |
| Owner Name | RUFF STEVEN |
| Other Names |
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| Street | 14420 SE 38TH ST |
| City | BELLEVUE |
| State | WA |
| Zip Code | 98006-1532 |
| Region | Northwest Mountain |
| County | King County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1960-06-26 |
| Certificate Issue Date | 2015-06-03 |
| Last Action Date | 2021-07-20 |
| Expiration Date | 2028-06-30 |
| Status | Valid Registration |
| Mode S Code | 51202613 |
| Mode S Code Hex | A5058B |