| Tail Number / N-Number | N660AC |
| Manufacturer | PIPER |
| Model | PA-31-350 |
| Year Built | 1977 |
| Manufacturer's Serial Number | 31-7752142 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 8 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | LYCOMING |
| Engine Model | TI0-540 SER |
| Engine Type | Turbo-prop |
| Number of Engines | 2 engines |
| Horsepower per Engine | 310 hp (231 kW) |
| Total Horsepower | 620 hp (463 kW) |
| Average Cruising Speed | 162 miles per hour |
| Type of Registrant | LLC |
| Owner Name | SMOOTH AIR LLC |
| Street | 216 AMERICAN DR |
| City | RICHBORO |
| State | PA |
| Zip Code | 18954-1141 |
| Region | Eastern |
| County | Bucks County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1977-07-30 |
| Certificate Issue Date | 2022-05-02 |
| Last Action Date | 2022-05-02 |
| Expiration Date | 2029-05-31 |
| Status | Valid Registration |
| Mode S Code | 52132074 |
| Mode S Code Hex | A8B43C |