| Tail Number / N-Number | N7891T |
| Manufacturer | CESSNA |
| Model | 172A |
| Year Built | 1960 |
| Manufacturer's Serial Number | 47491 |
| 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 | 0-300 SER |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 145 hp (108 kW) |
| Average Cruising Speed | 105 miles per hour |
| Type of Registrant | Individual |
| Owner Name | DONALDSON ROBERT M |
| Street | 2785 CANYON CREEK DR |
| City | SAN RAMON |
| State | CA |
| Zip Code | 94583-1848 |
| Region | Western-Pacific |
| County | Contra Costa County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Certificate Issue Date | 2002-09-04 |
| Last Action Date | 2021-02-22 |
| Expiration Date | 2028-07-31 |
| Status | Valid Registration |
| Mode S Code | 52532202 |
| Mode S Code Hex | AAB482 |