| Tail Number / N-Number | N633U |
| Manufacturer | GRUMMAN |
| Model | G-164 |
| Year Built | 1965 |
| Manufacturer's Serial Number | 369 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 1 seat |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | JACOBS |
| Engine Model | R755A SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 300 hp (224 kW) |
| Average Cruising Speed | 98 miles per hour |
| Type of Registrant | Individual |
| Owner Name | SMITH DAVID C |
| Street | 343 MONSE RIVER RD |
| City | BREWSTER |
| State | WA |
| Zip Code | 98812-9553 |
| Region | Northwest Mountain |
| County | Okanogan County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Restricted |
| Airworthiness Date | 1965-07-19 |
| Certificate Issue Date | 2012-10-31 |
| Last Action Date | 2021-05-18 |
| Expiration Date | 2028-10-31 |
| Status | Valid Registration |
| Mode S Code | 52045243 |
| Mode S Code Hex | A84AA3 |