| Tail Number / N-Number | N635SG |
| Manufacturer | ROBINSON HELICOPTER CO |
| Model | R66 |
| Manufacturer's Serial Number | 0999 |
| Aircraft Type | Rotorcraft |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 5 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 1 engine |
| Type of Registrant | Individual |
| Owner Name | DUNN ERIC |
| Street | 6350 LA HONDA RD |
| City | LA HONDA |
| State | CA |
| Zip Code | 94020-9721 |
| Region | Western-Pacific |
| County | San Mateo County |
| Country | US |
| Fractional Ownership | No |
| Certificate Issue Date | 2020-12-05 |
| Last Action Date | 2020-12-05 |
| Expiration Date | 2027-12-31 |
| Status | Valid Registration |
| Mode S Code | 52050746 |
| Mode S Code Hex | A851E6 |