| Tail Number / N-Number | N3657Y |
| Manufacturer | CESSNA |
| Model | 210C |
| Year Built | 1963 |
| Manufacturer's Serial Number | 21058157 |
| 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 | IO-470 SER |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 260 hp (194 kW) |
| Average Cruising Speed | 141 miles per hour |
| Type of Registrant | Co-Ownership |
| Owner Name | DALLENBACH WILLIAM D |
| Other Names |
|
| Street | 417 HERSHNER DR |
| City | LOS GATOS |
| State | CA |
| Zip Code | 95032-4002 |
| Region | Western-Pacific |
| County | Santa Clara County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 2003-07-14 |
| Certificate Issue Date | 2009-09-22 |
| Last Action Date | 2020-11-10 |
| Expiration Date | 2028-04-30 |
| Status | Valid Registration |
| Mode S Code | 51021103 |
| Mode S Code Hex | A42243 |