| Tail Number / N-Number | N406MB |
| Manufacturer | TEXTRON AVIATION INC |
| Model | 525B |
| Year Built | 2022 |
| Manufacturer's Serial Number | 525B0674 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 8 seats |
| Weight Class | CLASS 2 (12,500 - 19,999 pounds gross take off weight) |
| Engine Manufacturer | WILLIAMS |
| Engine Model | FJ44-3A |
| Engine Type | Turbo-fan |
| Number of Engines | 2 engines |
| Thrust per Engine | 2,820 pounds-force (12.5 kN) |
| Total Thrust | 5,640 pounds-force (25.1 kN) |
| Type of Registrant | LLC |
| Owner Name | BRETZ-AZTEC LLC |
| Street | 4800 GRANT CREEK RD |
| City | MISSOULA |
| State | MT |
| Zip Code | 59808-1454 |
| Region | Northwest Mountain |
| County | Missoula County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 2022-08-19 |
| Certificate Issue Date | 2022-09-16 |
| Last Action Date | 2022-09-16 |
| Expiration Date | 2029-09-30 |
| Status | Valid Registration |
| Mode S Code | 51142000 |
| Mode S Code Hex | A4C400 |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N406MB.
| Tail Number / N-Number | N406MB |
| Manufacturer | MATHEYS BRETT C |
| Model | ROTEC RALLY |
| Manufacturer's Serial Number | 66044 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 1 seat |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 1 engine |
| Type of Registrant | Individual |
| Owner Name | MATHEYS BRETT C |
| Street | 129 CLUB DRIVE |
| City | PALM BEACH GARDENS |
| State | FL |
| Zip Code | 33410 |
| County | Missoula County |
| Country | US |
| Certificate Issue Date | 1984-12-21 |
| Last Action Date | 1994-03-31 |
| Last Status | Registration Expired – Pending Cancellation |
| Cancellation Date | 2015-05-06 |