| Tail Number / N-Number | N31PY |
| Manufacturer | YARNALL PAUL J |
| Model | HUMMELBIRD |
| Year Built | 1995 |
| Manufacturer's Serial Number | 001 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 1 seat |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | AMA/EXPR |
| Engine Model | UNKNOWN ENG |
| Number of Engines | 1 engine |
| Type of Registrant | LLC |
| Owner Name | PROFLIGHT LLC |
| Street | 1027 MONROE ST N |
| City | HUDSON |
| State | WI |
| Zip Code | 54016-1115 |
| Region | Great Lakes |
| County | St. Croix County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1995-10-12 |
| Certificate Issue Date | 2018-08-01 |
| Last Action Date | 2021-03-30 |
| Expiration Date | 2028-08-31 |
| Status | Valid Registration |
| Mode S Code | 50642724 |
| Mode S Code Hex | A345D4 |