| Tail Number / N-Number | N61640 |
| Manufacturer | CESSNA |
| Model | 172M |
| Year Built | 1975 |
| Manufacturer's Serial Number | 17264694 |
| 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 | 108 miles per hour |
| Type of Registrant | Individual |
| Owner Name | COOPER MICHAEL A |
| Street | 7319 CIRCLE DR |
| City | ROHNERT PARK |
| State | CA |
| Zip Code | 94928-3411 |
| Region | Western-Pacific |
| County | Sonoma County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1975-01-21 |
| Certificate Issue Date | 2017-06-06 |
| Last Action Date | 2023-01-22 |
| Expiration Date | 2027-06-30 |
| Status | Valid Registration |
| Mode S Code | 52004005 |
| Mode S Code Hex | A80805 |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N61640.
| Tail Number / N-Number | N61640 |
| Manufacturer | LAISTER-KAUFFMAN |
| Model | LK-10A |
| Manufacturer's Serial Number | 20 |
| Aircraft Type | Glider |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 2 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 0 engines |
| Average Cruising Speed | 60 miles per hour |
| Type of Registrant | Individual |
| Owner Name | HOPF JULIAN G |
| Street | 1254 LEWERENZ ST |
| City | DETROIT |
| State | MI |
| Zip Code | 48201 |
| Region | Great Lakes |
| County | Sonoma County |
| Certificate Issue Date | 1951-08-17 |
| Last Status | Valid Registration |
| Cancellation Date | 1956-02-15 |