| Tail Number / N-Number | N21KM |
| Manufacturer | BEECH |
| Model | C23 |
| Year Built | 1974 |
| Manufacturer's Serial Number | M-1510 |
| 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 | O&VO-360 SER |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 180 hp (134 kW) |
| Average Cruising Speed | 116 miles per hour |
| Type of Registrant | Individual |
| Owner Name | EMBREY GARY L |
| Street | 103 LAKEWOOD LN |
| City | GEORGETOWN |
| State | OH |
| Zip Code | 45121-9038 |
| Region | Great Lakes |
| County | Brown County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1974-01-11 |
| Certificate Issue Date | 2010-07-07 |
| Last Action Date | 2020-05-13 |
| Expiration Date | 2027-10-31 |
| Status | Valid Registration |
| Mode S Code | 50334026 |
| Mode S Code Hex | A1B816 |