| Tail Number / N-Number | N6684K |
| Manufacturer | REPUBLIC |
| Model | RC-3 |
| Year Built | 1946 |
| Manufacturer's Serial Number | 967 |
| Aircraft Type | Fixed wing single engine |
| Category | Amphibian |
| Builder Certification | Type Certificated |
| Number of Seats | 4 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | LYCOMING |
| Engine Model | GO-480 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 295 hp (220 kW) |
| Average Cruising Speed | 87 miles per hour |
| Type of Registrant | Individual |
| Owner Name | MASLAR JOSEPH P |
| Street | 5353 FANNIN ST APT 1619 |
| City | HOUSTON |
| State | TX |
| Zip Code | 77004-8090 |
| Region | Southwestern |
| County | Harris County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1980-09-10 |
| Certificate Issue Date | 2021-01-16 |
| Last Action Date | 2021-01-16 |
| Expiration Date | 2028-01-31 |
| Status | Valid Registration |
| Mode S Code | 52152337 |
| Mode S Code Hex | A8D4DF |