| Tail Number / N-Number | N501HA |
| Manufacturer | HILLER |
| Model | UH-12E4 |
| Year Built | 1966 |
| Manufacturer's Serial Number | 2534 |
| Aircraft Type | Rotorcraft |
| Category | Land |
| Builder Certification | Not 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 SER |
| Engine Type | Turbo-shaft |
| Number of Engines | 1 engine |
| Horsepower | 305 hp (228 kW) |
| Average Cruising Speed | 79 miles per hour |
| Type of Registrant | Individual |
| Owner Name | POCKRUS PAT B |
| Street | 517 GRANT RD |
| City | MINERAL WELLS |
| State | TX |
| Zip Code | 76067-8826 |
| Region | Southwestern |
| County | Palo Pinto County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1997-11-05 |
| Certificate Issue Date | 2007-11-06 |
| Last Action Date | 2021-05-15 |
| Expiration Date | 2028-10-31 |
| Status | Valid Registration |
| Mode S Code | 51437127 |
| Mode S Code Hex | A63E57 |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N501HA.
| Tail Number / N-Number | N501HA |
| Manufacturer | HILLER |
| Model | UH-12E |
| Manufacturer's Serial Number | 5001 |
| 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) |
| Number of Engines | 1 engine |
| Average Cruising Speed | 72 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | HILL AVIATION |
| Street | 2075 W SCRANTON AVE |
| City | PORTERVILLE |
| State | CA |
| Zip Code | 93257 |
| Region | Western-Pacific |
| County | Palo Pinto County |
| Certificate Issue Date | 1973-12-19 |
| Last Status | Valid Registration |
| Cancellation Date | 1974-01-30 |
| Exported To | NEW ZEALAND |