| Tail Number / N-Number | N139HA |
| Manufacturer | HILLER |
| Model | UH-12E |
| Year Built | 1976 |
| Manufacturer's Serial Number | HA3039 |
| Aircraft Type | Rotorcraft |
| 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 | VO-540 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 310 hp (231 kW) |
| Average Cruising Speed | 72 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | KNUTSON FLYING SERVICE INC |
| Street | PO BOX 333 |
| City | TIOGA |
| State | ND |
| Zip Code | 58852-0333 |
| Region | Great Lakes |
| County | Williams County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Restricted |
| Airworthiness Date | 1976-06-05 |
| Certificate Issue Date | 2008-04-23 |
| Last Action Date | 2023-01-22 |
| Expiration Date | 2027-05-31 |
| Status | Valid Registration |
| Mode S Code | 50116520 |
| Mode S Code Hex | A09D50 |