| Tail Number / N-Number | N721SM |
| Manufacturer | PIPER |
| Model | PA-28-181 |
| Year Built | 2000 |
| Manufacturer's Serial Number | 2843337 |
| 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 | 105 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | BLUE SKIES FLYING SERVICES INC |
| Street | 8411 PYOTT RD |
| City | LAKE IN THE HILLS |
| State | IL |
| Zip Code | 60156-6516 |
| Region | Great Lakes |
| County | McHenry County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 2000-03-31 |
| Certificate Issue Date | 2012-04-09 |
| Last Action Date | 2020-11-10 |
| Expiration Date | 2028-04-30 |
| Status | Valid Registration |
| Mode S Code | 52324337 |
| Mode S Code Hex | A9A8DF |