| Tail Number / N-Number | N1021W |
| Manufacturer | BEECH |
| Model | A36 |
| Year Built | 1973 |
| Manufacturer's Serial Number | E-401 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 6 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | CONT MOTOR |
| Engine Model | IO 520 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 285 hp (213 kW) |
| Average Cruising Speed | 138 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | GREYSTONE ENTERPRISES INC |
| Street | 13929 QUAIL POINTE DR |
| City | OKLAHOMA CITY |
| State | OK |
| Zip Code | 73134-1002 |
| Region | Southwestern |
| County | Oklahoma County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1973-03-06 |
| Certificate Issue Date | 2015-07-16 |
| Last Action Date | 2021-02-12 |
| Expiration Date | 2028-07-31 |
| Status | Valid Registration |
| Mode S Code | 50007262 |
| Mode S Code Hex | A00EB2 |