| Tail Number / N-Number | N6421Q |
| Manufacturer | MOONEY |
| Model | M20F |
| Year Built | 1967 |
| Manufacturer's Serial Number | 670500 |
| 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 | I0360 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 | SHINE CHRISTOPHER A |
| Street | PO BOX 2611 |
| City | MAMMOTH LAKES |
| State | CA |
| Zip Code | 93546-2611 |
| Region | Western-Pacific |
| County | Mono County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Certificate Issue Date | 2018-04-12 |
| Last Action Date | 2020-11-24 |
| Expiration Date | 2028-04-30 |
| Status | Valid Registration |
| Mode S Code | 52067463 |
| Mode S Code Hex | A86F33 |