| Tail Number / N-Number | N451DD |
| Manufacturer | ROBINSON HELICOPTER |
| Model | R22 BETA |
| Year Built | 1990 |
| Manufacturer's Serial Number | 1451 |
| Aircraft Type | Rotorcraft |
| Category | Land |
| Builder Certification | 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 | 0-320 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 180 hp (134 kW) |
| Type of Registrant | Individual |
| Owner Name | DIAZ MARK A DBA |
| Other Names |
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| Street | 4140 AVIATION DR |
| City | MADERA |
| State | CA |
| Zip Code | 93637-9227 |
| Region | Western-Pacific |
| County | Madera County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1990-06-27 |
| Last Action Date | 2023-01-18 |
| Status | Valid Registration |
| Mode S Code | 51273042 |
| Mode S Code Hex | A57622 |