| Tail Number / N-Number | N21ZZ |
| Manufacturer | NAVION |
| Model | NAVION G |
| Year Built | 1962 |
| Manufacturer's Serial Number | NAV-4-2405 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 5 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | CONT MOTOR |
| Engine Model | I0-470 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 260 hp (194 kW) |
| Average Cruising Speed | 126 miles per hour |
| Type of Registrant | LLC |
| Owner Name | MADSHACK AVIATION LLC |
| Street | C/O HYLAND LAW PLLC 1818 LIBRARY ST STE 500 |
| City | RESTON |
| State | VA |
| Zip Code | 20190-6274 |
| Region | Eastern |
| County | Fairfax County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1962-01-27 |
| Certificate Issue Date | 2022-08-18 |
| Last Action Date | 2022-08-18 |
| Expiration Date | 2029-08-31 |
| Status | Valid Registration |
| Mode S Code | 50334600 |
| Mode S Code Hex | A1B980 |