| Tail Number / N-Number | N520AB |
| Manufacturer | CESSNA |
| Model | 421C |
| Year Built | 1979 |
| Manufacturer's Serial Number | 421C0690 |
| 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 | GTSIO-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 | LLC |
| Owner Name | N520AB LLC |
| Street | 1905 N 7TH ST |
| City | WEST MONROE |
| State | LA |
| Zip Code | 71291-4415 |
| Region | Southwestern |
| County | Ouachita Parish |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1994-01-20 |
| Certificate Issue Date | 2021-11-18 |
| Last Action Date | 2021-11-18 |
| Expiration Date | 2028-11-30 |
| Status | Valid Registration |
| Mode S Code | 51504360 |
| Mode S Code Hex | A688F0 |