| Tail Number / N-Number | N391X |
| Manufacturer | MAULE |
| Model | M-5-210C |
| Year Built | 1976 |
| Manufacturer's Serial Number | 6183C |
| 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 | CONT MOTOR |
| Engine Model | IO-360 SER |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 300 hp (224 kW) |
| Average Cruising Speed | 93 miles per hour |
| Type of Registrant | Co-Ownership |
| Owner Name | SULLINGER BILLY |
| Other Names |
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| Street | 6633 HIGHWAY 328 W |
| City | POCAHONTAS |
| State | AR |
| Zip Code | 72455-8667 |
| Region | Southwestern |
| County | Randolph County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1976-08-09 |
| Certificate Issue Date | 2016-12-07 |
| Last Action Date | 2022-07-15 |
| Expiration Date | 2029-12-31 |
| Status | Valid Registration |
| Mode S Code | 51104215 |
| Mode S Code Hex | A4888D |