| Tail Number / N-Number | N4421D |
| Manufacturer | DEFEND CURTIS W |
| Model | RV6-A |
| Year Built | 2000 |
| Manufacturer's Serial Number | 22055 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 2 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | LYCOMING |
| Engine Model | O&VO-360 SER |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 180 hp (134 kW) |
| Type of Registrant | Individual |
| Owner Name | HOLT REGINALD M |
| Street | 7478 NW 28TH ST |
| City | ANKENY |
| State | IA |
| Zip Code | 50023-9421 |
| Region | Central |
| County | Polk County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2000-02-03 |
| Certificate Issue Date | 2021-07-28 |
| Last Action Date | 2021-07-28 |
| Expiration Date | 2028-07-31 |
| Status | Valid Registration |
| Mode S Code | 51252212 |
| Mode S Code Hex | A5548A |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N4421D.
| Tail Number / N-Number | N4421D |
| Manufacturer | BEECH |
| Model | G35 |
| Manufacturer's Serial Number | D4574 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 4 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 1 engine |
| Average Cruising Speed | 131 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | BEMIDJI AVIATION SERVICES INC |
| Street | 4021 MOBERG DR NW PO BOX 624 |
| City | BEMIDJI |
| State | MN |
| Zip Code | 56601 |
| County | Polk County |
| Country | US |
| Certificate Issue Date | 1993-04-29 |
| Last Action Date | 1993-04-30 |
| Last Status | Valid Registration |
| Cancellation Date | 1994-03-03 |