| Tail Number / N-Number | N1MX |
| Manufacturer | BELL |
| Model | UH-1B |
| Manufacturer's Serial Number | 62-01995 |
| Aircraft Type | Rotorcraft |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 6 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 1 engine |
| Average Cruising Speed | 103 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | NORTHWEST HELICOPTERS I INC |
| Street | 1000 85TH AVE SE |
| City | OLYMPIA |
| State | WA |
| Zip Code | 98501-5707 |
| Region | Northwest Mountain |
| County | Thurston County |
| Country | US |
| Fractional Ownership | No |
| Certificate Issue Date | 1995-02-02 |
| Last Action Date | 2022-02-15 |
| Expiration Date | 2029-07-31 |
| Status | Valid Registration |
| Mode S Code | 50000453 |
| Mode S Code Hex | A0012B |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N1MX.
| Tail Number / N-Number | N1MX |
| Manufacturer | BEECH |
| Model | C90 |
| Year Built | 1973 |
| Manufacturer's Serial Number | LJ-616 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 9 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 2 engines |
| Average Cruising Speed | 201 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | AIR SERVICE INC |
| Street | PO BOX 8237 |
| City | GREENSBORO |
| State | NC |
| Zip Code | 27410 |
| Region | Eastern |
| County | Thurston County |
| Certificate Issue Date | 1979-01-12 |
| Last Status | Valid Registration |
| Cancellation Date | 1979-04-06 |
| Exported To | SWEDEN |