| Tail Number / N-Number | N6731U |
| Manufacturer | MOONEY |
| Model | M20C |
| Year Built | 1963 |
| Manufacturer's Serial Number | 2463 |
| 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 | LYCOMING |
| Engine Model | O&VO-360 SER |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 180 hp (134 kW) |
| Average Cruising Speed | 127 miles per hour |
| Type of Registrant | Individual |
| Owner Name | GONDOUIN FRANCIS P |
| Street | 40 BELLAM BLVD UNIT 9535 |
| City | SAN RAFAEL |
| State | CA |
| Zip Code | 94912-5727 |
| Region | Western-Pacific |
| County | Marin County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1963-04-23 |
| Certificate Issue Date | 2016-12-09 |
| Last Action Date | 2022-09-01 |
| Expiration Date | 2029-12-31 |
| Status | Valid Registration |
| Mode S Code | 52164553 |
| Mode S Code Hex | A8E96B |