| Tail Number / N-Number | N503SD |
| Manufacturer | CESSNA |
| Model | 150M |
| Year Built | 1974 |
| Manufacturer's Serial Number | 15076056 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 2 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | CONT MOTOR |
| Engine Model | 0-200 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 100 hp (75 kW) |
| Average Cruising Speed | 81 miles per hour |
| Type of Registrant | Individual |
| Owner Name | SIMMONS MARK |
| Street | 129 GREENBRIAR DR |
| City | MADISON |
| State | MS |
| Zip Code | 39110-8749 |
| Region | Southwestern |
| County | Madison County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1974-09-05 |
| Certificate Issue Date | 2006-02-13 |
| Last Action Date | 2023-01-22 |
| Expiration Date | 2027-01-31 |
| Status | Valid Registration |
| Mode S Code | 51443251 |
| Mode S Code Hex | A646A9 |