| Tail Number / N-Number | N6604M |
| Manufacturer | STINSON |
| Model | 108-3 |
| Year Built | 1948 |
| Manufacturer's Serial Number | 108-4604 |
| 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 | JOHNSON HARRY L |
| Other Names |
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| Street | 3814 SANDERS RD |
| City | LIVE OAK |
| State | CA |
| Zip Code | 95953-9730 |
| Region | Western-Pacific |
| County | Sutter County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Certificate Issue Date | 1988-11-28 |
| Last Action Date | 2021-11-12 |
| Expiration Date | 2029-01-31 |
| Status | Valid Registration |
| Mode S Code | 52133451 |
| Mode S Code Hex | A8B729 |