| Tail Number / N-Number | N191SP |
| Manufacturer | PILATUS |
| Model | PC-12/45 |
| Year Built | 1999 |
| Manufacturer's Serial Number | 284 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 12 seats |
| Weight Class | CLASS 2 (12,500 - 19,999 pounds gross take off weight) |
| Engine Manufacturer | P&W CANADA |
| Engine Model | PT6A-66 SER |
| Engine Type | Turbo-prop |
| Number of Engines | 1 engine |
| Horsepower | 850 hp (634 kW) |
| Type of Registrant | LLC |
| Owner Name | JKE HELM LLC |
| Street | PO BOX 7192 |
| City | SPRECKELS |
| State | CA |
| Zip Code | 93962-7192 |
| Region | Western-Pacific |
| County | Monterey County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 2000-01-06 |
| Certificate Issue Date | 2014-07-14 |
| Last Action Date | 2020-03-10 |
| Expiration Date | 2027-07-31 |
| Status | Valid Registration |
| Mode S Code | 50266600 |
| Mode S Code Hex | A16D80 |