| Tail Number / N-Number | N84GU |
| Manufacturer | ROCKWELL INTERNATIONAL |
| Model | 690B |
| Year Built | 1979 |
| Manufacturer's Serial Number | 11522 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 11 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | AIRESEARCH |
| Engine Model | TPE331-5&6SER |
| Engine Type | Turbo-prop |
| Number of Engines | 2 engines |
| Horsepower per Engine | 776 hp (579 kW) |
| Total Horsepower | 1,552 hp (1,158 kW) |
| Average Cruising Speed | 192 miles per hour |
| Type of Registrant | LLC |
| Owner Name | GST AVIATION LLC |
| Street | 55 W FRANKLIN ST |
| City | TUCSON |
| State | AZ |
| Zip Code | 85701-1110 |
| Region | Western-Pacific |
| County | Pima County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1992-02-24 |
| Certificate Issue Date | 2018-08-08 |
| Last Action Date | 2021-03-19 |
| Expiration Date | 2028-08-31 |
| Status | Valid Registration |
| Mode S Code | 52677051 |
| Mode S Code Hex | AB7E29 |