| Tail Number / N-Number | N421TW |
| Manufacturer | CESSNA |
| Model | 182Q |
| Year Built | 1978 |
| Manufacturer's Serial Number | 18266268 |
| 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 | CONT MOTOR |
| Engine Model | O-470 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 230 hp (172 kW) |
| Average Cruising Speed | 112 miles per hour |
| Type of Registrant | Individual |
| Owner Name | HESLIN JON L |
| Street | 21 HEMLOCK DR |
| City | SUTTON |
| State | MA |
| Zip Code | 01590-1814 |
| Region | New England |
| County | Worcester County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1978-03-10 |
| Certificate Issue Date | 2018-04-12 |
| Last Action Date | 2021-01-11 |
| Expiration Date | 2028-04-30 |
| Status | Valid Registration |
| Mode S Code | 51200424 |
| Mode S Code Hex | A50114 |