| Tail Number / N-Number | N638TS |
| Manufacturer | PIPER |
| Model | PA-28-181 |
| Manufacturer's Serial Number | 28-7890109 |
| 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 | 105 miles per hour |
| Type of Registrant | Individual |
| Owner Name | WALKER JOHN E |
| Street | PO BOX 2830 |
| City | SUNNYVALE |
| State | CA |
| Zip Code | 94087-0830 |
| Region | Western-Pacific |
| County | Santa Clara County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1977-09-27 |
| Certificate Issue Date | 2021-09-07 |
| Last Action Date | 2021-09-07 |
| Expiration Date | 2028-09-30 |
| Status | Valid Registration |
| Mode S Code | 52056456 |
| Mode S Code Hex | A85D2E |