| Tail Number / N-Number | N477M |
| Manufacturer | BEECH |
| Model | C90 |
| Year Built | 1987 |
| Manufacturer's Serial Number | LJ-1154 |
| 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) |
| Engine Manufacturer | P&W CANADA |
| Engine Model | PT6A-21 |
| Engine Type | Turbo-prop |
| Number of Engines | 2 engines |
| Horsepower per Engine | 550 hp (410 kW) |
| Total Horsepower | 1,100 hp (821 kW) |
| Average Cruising Speed | 201 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | AIRCRAFT UNLIMITED INC |
| Street | 4000 AIRPORT RD |
| City | PIERRE |
| State | SD |
| Zip Code | 57501-5605 |
| Region | Great Lakes |
| County | Hughes County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1987-10-20 |
| Certificate Issue Date | 2019-05-03 |
| Last Action Date | 2022-02-16 |
| Expiration Date | 2029-05-31 |
| Status | Valid Registration |
| Mode S Code | 51356056 |
| Mode S Code Hex | A5DC2E |
Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N477M.
| Tail Number / N-Number | N477M |
| Manufacturer | STINSON |
| Model | RELIANT |
| Manufacturer's Serial Number | 8522 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 0 seats |
| Weight Class | CLASS 4 (UAV up to 55 pounds gross take off weight) |
| Number of Engines | 1 engine |
| Type of Registrant | Corporation |
| County | Hughes County |
| Certificate Issue Date | 1932-08-13 |
| Last Status | Valid Registration |
| Cancellation Date | 1932-08-26 |
| Exported To | SPAIN |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N477M.
| Tail Number / N-Number | N477M |
| Manufacturer | MOONEY |
| Model | M-18C |
| Year Built | 1950 |
| Manufacturer's Serial Number | 232 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 1 seat |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | CONT MOTOR |
| Engine Model | A&C65 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 65 hp (48 kW) |
| Average Cruising Speed | 103 miles per hour |
| Type of Registrant | Individual |
| Owner Name | SALE REPORTED |
| Street | 1227 HIGHLAND DR |
| City | MOSCOW |
| State | ID |
| Zip Code | 83843-9413 |
| County | Hughes County |
| Country | US |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1956-02-09 |
| Last Action Date | 1997-12-04 |
| Last Status | Sale Reported – Pending Cancellation |
| Cancellation Date | 2012-10-01 |