| Tail Number / N-Number | N391Z |
| Manufacturer | BEECH |
| Model | M35 |
| Year Built | 1960 |
| Manufacturer's Serial Number | D-6558 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 5 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | CONT MOTOR |
| Engine Model | I0-470 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 260 hp (194 kW) |
| Average Cruising Speed | 150 miles per hour |
| Type of Registrant | Individual |
| Owner Name | KEENE KEITH |
| Street | 15200 BEAUMONT HWY |
| City | HOUSTON |
| State | TX |
| Zip Code | 77049-1973 |
| Region | Southwestern |
| County | Harris County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1960-11-17 |
| Certificate Issue Date | 2005-10-07 |
| Last Action Date | 2021-07-30 |
| Expiration Date | 2028-07-31 |
| Status | Valid Registration |
| Mode S Code | 51104277 |
| Mode S Code Hex | A488BF |