| Tail Number / N-Number | N121CB |
| Manufacturer | CESSNA |
| Model | 340A |
| Year Built | 1976 |
| Manufacturer's Serial Number | 340A0087 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 6 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | CONT MOTOR |
| Engine Model | TSIO-520 SER |
| Engine Type | Reciprocating |
| Number of Engines | 2 engines |
| Horsepower per Engine | 300 hp (224 kW) |
| Total Horsepower | 600 hp (448 kW) |
| Average Cruising Speed | 90 miles per hour |
| Type of Registrant | Co-Ownership |
| Owner Name | CLARK ANDREW R |
| Other Names |
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| Street | 12290 SKYLINE BLVD |
| City | WOODSIDE |
| State | CA |
| Zip Code | 94062-4552 |
| Region | Western-Pacific |
| County | San Mateo County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1976-08-02 |
| Certificate Issue Date | 2020-01-10 |
| Last Action Date | 2022-08-11 |
| Expiration Date | 2030-01-31 |
| Status | Valid Registration |
| Mode S Code | 50053635 |
| Mode S Code Hex | A0579D |