| Tail Number / N-Number | N6643W |
| Manufacturer | PIPER |
| Model | PA-28-140 |
| Year Built | 1965 |
| Manufacturer's Serial Number | 28-20743 |
| 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 | 0-320 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 180 hp (134 kW) |
| Average Cruising Speed | 107 miles per hour |
| Type of Registrant | Individual |
| Owner Name | WEISS STEPHAN T |
| Street | 4840 KINGBROOK DR |
| City | SAN JOSE |
| State | CA |
| Zip Code | 95124-4907 |
| Region | Western-Pacific |
| County | Santa Clara County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1965-03-01 |
| Certificate Issue Date | 2005-09-28 |
| Last Action Date | 2020-11-10 |
| Expiration Date | 2028-04-30 |
| Status | Valid Registration |
| Mode S Code | 52142753 |
| Mode S Code Hex | A8C5EB |