| Tail Number / N-Number | N501EF |
| Manufacturer | HUGHES |
| Model | 369D |
| Year Built | 1977 |
| Manufacturer's Serial Number | 270091D |
| 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 | ALLISON |
| Engine Model | 250 SER 400HP |
| Engine Type | Turbo-shaft |
| Number of Engines | 1 engine |
| Horsepower | 400 hp (298 kW) |
| Average Cruising Speed | 112 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | AIRWEST HELICOPTERS INC |
| Street | PO BOX 814 |
| City | REDLANDS |
| State | CA |
| Zip Code | 92373-0261 |
| Region | Western-Pacific |
| County | San Bernardino County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1977-05-25 |
| Certificate Issue Date | 2004-09-29 |
| Last Action Date | 2020-11-25 |
| Expiration Date | 2028-04-30 |
| Status | Valid Registration |
| Mode S Code | 51437021 |
| Mode S Code Hex | A63E11 |