| Tail Number / N-Number | N400SD |
| Manufacturer | DONAHOO STANLEY E |
| Model | RV-4 |
| Year Built | 1996 |
| Manufacturer's Serial Number | 3612 |
| 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 | LEONARD TYLER D |
| Street | 4382 CAMINO DE LA ROSA |
| City | NEWBURY PARK |
| State | CA |
| Zip Code | 91320-6716 |
| Region | Western-Pacific |
| County | Ventura County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1996-07-09 |
| Certificate Issue Date | 2022-07-11 |
| Last Action Date | 2022-07-11 |
| Expiration Date | 2029-07-31 |
| Status | Valid Registration |
| Mode S Code | 51127065 |
| Mode S Code Hex | A4AE35 |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N400SD.
| Tail Number / N-Number | N400SD |
| Manufacturer | BELL |
| Model | UH-1B |
| Manufacturer's Serial Number | 638668 |
| Aircraft Type | Rotorcraft |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 6 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 1 engine |
| Average Cruising Speed | 103 miles per hour |
| County | Ventura County |
| Last Status | N-Number Assigned – but has not yet been registered |
| Cancellation Date | 1990-04-13 |