| Tail Number / N-Number | N37AF |
| Manufacturer | ROBINSON HELICOPTER CO |
| Model | R66 |
| Manufacturer's Serial Number | 0029 |
| 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 | ROLLS-ROYC |
| Engine Model | 250-C300 |
| Engine Type | Turbo-shaft |
| Number of Engines | 1 engine |
| Horsepower | 300 hp (224 kW) |
| Type of Registrant | LLC |
| Owner Name | AIR FIRST LLC |
| Street | PO BOX 10247 |
| City | KALISPELL |
| State | MT |
| Zip Code | 59904-3247 |
| Region | Northwest Mountain |
| County | Flathead County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 2011-04-04 |
| Certificate Issue Date | 2022-12-29 |
| Last Action Date | 2022-12-29 |
| Expiration Date | 2029-12-31 |
| Status | Valid Registration |
| Mode S Code | 51030570 |
| Mode S Code Hex | A43178 |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N37AF.
| Tail Number / N-Number | N37AF |
| Manufacturer | LIGHT AERO INC |
| Model | AVID FLYER AF1 |
| Manufacturer's Serial Number | 221 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 2 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 1 engine |
| Type of Registrant | Individual |
| Owner Name | GUTHRIE JOHN A |
| Street | PO BOX 187 |
| City | BEDFORD |
| State | TX |
| Zip Code | 76021 |
| County | Flathead County |
| Country | US |
| Certificate Issue Date | 1987-07-20 |
| Last Action Date | 1994-07-11 |
| Last Status | Registration Expired – Pending Cancellation |
| Cancellation Date | 2013-06-12 |