| Tail Number / N-Number | N4421 |
| Manufacturer | TRAVEL AIR |
| Model | 4000 |
| Year Built | 1928 |
| Manufacturer's Serial Number | 381 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 3 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | LYCOMING |
| Engine Model | R680E SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 300 hp (224 kW) |
| Average Cruising Speed | 79 miles per hour |
| Type of Registrant | Individual |
| Owner Name | WARD JAMES G |
| Street | 4301 COUNTRY TRL |
| City | BONITA |
| State | CA |
| Zip Code | 91902-3031 |
| Region | Western-Pacific |
| County | San Diego County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Restricted |
| Airworthiness Date | 1956-03-09 |
| Certificate Issue Date | 1993-11-17 |
| Last Action Date | 2021-05-19 |
| Expiration Date | 2028-10-31 |
| Status | Valid Registration |
| Mode S Code | 51252206 |
| Mode S Code Hex | A55486 |