| Tail Number / N-Number | N866M |
| Manufacturer | BELL |
| Model | 206B |
| Year Built | 1998 |
| Manufacturer's Serial Number | 4476 |
| Aircraft Type | Rotorcraft |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 5 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | ALLISON |
| Engine Model | 250-C20 SER |
| Engine Type | Turbo-prop |
| Number of Engines | 1 engine |
| Horsepower | 420 hp (313 kW) |
| Average Cruising Speed | 112 miles per hour |
| Type of Registrant | Government |
| Owner Name | MIDDLESEX COUNTY MOSQUITO EXTERMINATION COMMISSION |
| Street | 200 PARSONAGE RD |
| City | EDISON |
| State | NJ |
| Zip Code | 08837-2118 |
| Region | Eastern |
| County | Middlesex County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Restricted |
| Airworthiness Date | 1998-06-03 |
| Certificate Issue Date | 2019-01-17 |
| Last Action Date | 2022-06-27 |
| Expiration Date | 2029-01-31 |
| Status | Valid Registration |
| Mode S Code | 52763064 |
| Mode S Code Hex | ABE634 |