| Tail Number / N-Number | N1891C |
| Manufacturer | CESSNA |
| Model | 170B |
| Year Built | 1953 |
| Manufacturer's Serial Number | 26035 |
| 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 | C145 SERIES |
| 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 | COETZEE THEO |
| Street | 1373 SONRISA CT |
| City | SAN LUIS OBISPO |
| State | CA |
| Zip Code | 93405-4809 |
| Region | Western-Pacific |
| County | San Luis Obispo County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1955-10-28 |
| Certificate Issue Date | 2023-02-03 |
| Last Action Date | 2023-02-15 |
| Expiration Date | 2030-02-28 |
| Status | Valid Registration |
| Mode S Code | 50262231 |
| Mode S Code Hex | A16499 |