| Tail Number / N-Number | N421DW |
| Manufacturer | PIPER |
| Model | PA-28RT-201T |
| Year Built | 1979 |
| Manufacturer's Serial Number | 28R-7931044 |
| 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 | TSIO-360 SER |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 225 hp (168 kW) |
| Type of Registrant | Individual |
| Owner Name | LANDMAN WILLIAM L |
| Street | 27 LIGHTHILL ROAD |
| City | SNOWMASS |
| State | CO |
| Zip Code | 81654 |
| Region | Northwest Mountain |
| County | Pitkin County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1979-01-22 |
| Certificate Issue Date | 1989-12-11 |
| Last Action Date | 2021-08-10 |
| Expiration Date | 2029-01-31 |
| Status | Valid Registration |
| Mode S Code | 51177666 |
| Mode S Code Hex | A4FFB6 |