| Tail Number / N-Number | N191YK |
| Manufacturer | YAKOVLEV |
| Model | YAK-55M |
| Year Built | 1992 |
| Manufacturer's Serial Number | 920309 |
| 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 | VEDENEYEV |
| Engine Model | M14P |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 350 hp (261 kW) |
| Type of Registrant | Individual |
| Owner Name | JAMES ANTHONY W |
| Street | 1248 HERMOSA WAY |
| City | SAN JOSE |
| State | CA |
| Zip Code | 95125-3511 |
| Region | Western-Pacific |
| County | Santa Clara County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2012-11-07 |
| Certificate Issue Date | 2008-06-27 |
| Last Action Date | 2020-11-17 |
| Expiration Date | 2027-12-31 |
| Status | Valid Registration |
| Mode S Code | 50267022 |
| Mode S Code Hex | A16E12 |