| Tail Number / N-Number | N4425S |
| Manufacturer | YAKOVLEV |
| Model | YAK-9U-M |
| Year Built | 1997 |
| Manufacturer's Serial Number | 0470405 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 1 seat |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | ALLISON |
| Engine Model | V1710 SERIES |
| Engine Type | Turbo-shaft |
| Number of Engines | 1 engine |
| Horsepower | 1,500 hp (1,119 kW) |
| Type of Registrant | Co-Ownership |
| Owner Name | ANDREINI LINDA J |
| Other Names |
|
| Street | 2220 CABRILLO HWY S |
| City | HALF MOON BAY |
| State | CA |
| Zip Code | 94019-2249 |
| Region | Western-Pacific |
| County | San Mateo County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1998-12-01 |
| Certificate Issue Date | 2015-07-31 |
| Last Action Date | 2021-02-19 |
| Expiration Date | 2028-07-31 |
| Status | Valid Registration |
| Mode S Code | 51252443 |
| Mode S Code Hex | A55523 |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N4425S.
| Tail Number / N-Number | N4425S |
| Manufacturer | AIR TRACTOR INC |
| Model | AT-301 |
| Manufacturer's Serial Number | 3010085 |
| 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) |
| Number of Engines | 1 engine |
| Average Cruising Speed | 71 miles per hour |
| County | San Mateo County |
| Last Status | N-Number Assigned – but has not yet been registered |
| Cancellation Date | 1989-09-07 |