| Tail Number / N-Number | N421DN |
| Manufacturer | CESSNA |
| Model | 421 |
| Year Built | 1968 |
| Manufacturer's Serial Number | 421-0146 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 8 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | CONT MOTOR |
| Engine Model | IO 520 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 2 engines |
| Horsepower per Engine | 285 hp (213 kW) |
| Total Horsepower | 570 hp (425 kW) |
| Average Cruising Speed | 172 miles per hour |
| Type of Registrant | Government |
| Owner Name | DEL MAR COLLEGE |
| Street | 101 BALDWIN BLVD |
| City | CORPUS CHRISTI |
| State | TX |
| Zip Code | 78404-3805 |
| Region | Southwestern |
| County | Nueces County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1968-07-16 |
| Certificate Issue Date | 2009-10-26 |
| Last Action Date | 2021-06-23 |
| Expiration Date | 2028-11-30 |
| Status | Valid Registration |
| Mode S Code | 51177656 |
| Mode S Code Hex | A4FFAE |