| Tail Number / N-Number | N331AH |
| Manufacturer | ROBINSON HELICOPTER COMPANY |
| Model | R44 II |
| Year Built | 2003 |
| Manufacturer's Serial Number | 10042 |
| 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 | IO-540 SER |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 300 hp (224 kW) |
| Type of Registrant | LLC |
| Owner Name | ARMSTRONG HELICOPTERS LLC |
| Street | 8501 ALTA MIRA DR |
| City | LAREDO |
| State | TX |
| Zip Code | 78045-7219 |
| Region | Southwestern |
| County | Webb County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 2003-02-13 |
| Certificate Issue Date | 2013-04-01 |
| Last Action Date | 2021-12-17 |
| Expiration Date | 2029-04-30 |
| Status | Valid Registration |
| Mode S Code | 50714616 |
| Mode S Code Hex | A3998E |