| Tail Number / N-Number | N104M |
| Manufacturer | GALPIN HENRY M |
| Model | BUCKER AERO Z 131 |
| Year Built | 1992 |
| Manufacturer's Serial Number | 157 |
| 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) |
| Engine Manufacturer | LYCOMING |
| Engine Model | I0360 SER A&C |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 200 hp (149 kW) |
| Type of Registrant | Individual |
| Owner Name | GALPIN HENRY M |
| Street | 1885 STILLWATER RD |
| City | KALISPELL |
| State | MT |
| Zip Code | 59901 |
| Region | Northwest Mountain |
| County | Flathead County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1992-04-23 |
| Certificate Issue Date | 1992-04-23 |
| Last Action Date | 2022-08-17 |
| Expiration Date | 2030-01-31 |
| Status | Valid Registration |
| Mode S Code | 50012243 |
| Mode S Code Hex | A014A3 |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N104M.
| Tail Number / N-Number | N104M |
| Manufacturer | BUECKER |
| Model | AERO Z 131 |
| Manufacturer's Serial Number | 157 |
| 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 |
| Average Cruising Speed | 112 miles per hour |
| Type of Registrant | Individual |
| Owner Name | GALPIN HENRY M |
| Street | 1885 STILLWATER RD |
| City | KALISPELL |
| State | MT |
| Zip Code | 59901 |
| County | Flathead County |
| Country | US |
| Certificate Issue Date | 1977-04-22 |
| Last Action Date | 1990-04-10 |
| Last Status | Valid Registration |
| Cancellation Date | 1992-04-17 |