| Tail Number / N-Number | N9789C |
| Manufacturer | PIPER |
| Model | PA-28R-201 |
| Year Built | 1978 |
| Manufacturer's Serial Number | 28R-7837221 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 4 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | LYCOMING |
| Engine Model | I0360 SER |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 180 hp (134 kW) |
| Average Cruising Speed | 108 miles per hour |
| Type of Registrant | Individual |
| Owner Name | LINARES CARLOS W |
| Street | 2280 DIAMOND BLVD STE 210 |
| City | CONCORD |
| State | CA |
| Zip Code | 94520-5772 |
| Region | Western-Pacific |
| County | Contra Costa County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1978-08-15 |
| Certificate Issue Date | 2013-04-17 |
| Last Action Date | 2021-11-11 |
| Expiration Date | 2029-04-30 |
| Status | Valid Registration |
| Mode S Code | 53322363 |
| Mode S Code Hex | ADA4F3 |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N9789C.
| Tail Number / N-Number | N9789C |
| Manufacturer | HILLER |
| Model | UH-12L |
| Manufacturer's Serial Number | 2274 |
| Aircraft Type | Rotorcraft |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 4 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 1 engine |
| Average Cruising Speed | 80 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | PARSONS CORP OF CALIFORNIA |
| Street | 3437 SOUTH AIRPORT WAY |
| City | STOCKTON |
| State | CA |
| Zip Code | 95206 |
| Region | Western-Pacific |
| County | Contra Costa County |
| Certificate Issue Date | 1972-06-27 |
| Last Status | Valid Registration |
| Cancellation Date | 1972-06-27 |
| Exported To | NEW ZEALAND |