| Tail Number / N-Number | N685SP |
| Manufacturer | CESSNA |
| Model | 172S |
| Year Built | 1999 |
| Manufacturer's Serial Number | 172S8096 |
| 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 | I0360 SER |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 180 hp (134 kW) |
| Type of Registrant | LLC |
| Owner Name | DIRTY SIDE DOWN AVIATION LLC |
| Street | 302 TOLEDO TRL |
| City | GEORGETOWN |
| State | TX |
| Zip Code | 78628-1775 |
| Region | Southwestern |
| County | Williamson County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1999-02-01 |
| Certificate Issue Date | 2016-06-09 |
| Last Action Date | 2022-01-24 |
| Expiration Date | 2029-06-30 |
| Status | Valid Registration |
| Mode S Code | 52213550 |
| Mode S Code Hex | A91768 |