| Tail Number / N-Number | N40638 |
| Manufacturer | MAULE |
| Model | M-4-220C |
| Year Built | 1972 |
| Manufacturer's Serial Number | 2155C |
| 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 | FRANKLIN |
| Engine Model | 6A-350SER |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 235 hp (175 kW) |
| Average Cruising Speed | 108 miles per hour |
| Type of Registrant | Individual |
| Owner Name | KROPF BRUCE A |
| Street | 4333 KEENER LN |
| City | HARRISON |
| State | AR |
| Zip Code | 72601-7517 |
| Region | Southwestern |
| County | Boone County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1981-04-10 |
| Certificate Issue Date | 2016-11-17 |
| Last Action Date | 2021-02-27 |
| Expiration Date | 2022-11-30 |
| Status | Third Notice for Registration Renewal |
| Mode S Code | 51142715 |
| Mode S Code Hex | A4C5CD |