| Tail Number / N-Number | N129AL |
| Manufacturer | AGUSTA S P A |
| Model | A109K2 |
| Manufacturer's Serial Number | 10029 |
| Aircraft Type | Rotorcraft |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 8 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | TURBOMECA |
| Engine Model | ARRIEL 1SER |
| Engine Type | Turbo-shaft |
| Number of Engines | 2 engines |
| Horsepower per Engine | 681 hp (508 kW) |
| Total Horsepower | 1,362 hp (1,016 kW) |
| Type of Registrant | Corporation |
| Owner Name | NIIHAU HELICOPTERS INC |
| Street | PO BOX 690370 |
| City | MAKAWELI |
| State | HI |
| Zip Code | 96769-0370 |
| Region | Western-Pacific |
| County | Kauai County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1996-07-17 |
| Certificate Issue Date | 2019-08-05 |
| Last Action Date | 2022-03-18 |
| Expiration Date | 2029-08-31 |
| Status | Valid Registration |
| Mode S Code | 50072454 |
| Mode S Code Hex | A0752C |