| Tail Number / N-Number | N356WB |
| Manufacturer | BURTIS WILLIAM A |
| Model | SPENCER AMPHIB AIR |
| Year Built | 2009 |
| Manufacturer's Serial Number | 261 |
| Aircraft Type | Fixed wing single engine |
| Category | Amphibian |
| Builder Certification | Not Type Certificated |
| Number of Seats | 4 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | CONT MOTOR |
| Engine Model | IO-520-L |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 300 hp (224 kW) |
| Type of Registrant | Corporation |
| Owner Name | MWM INTERESTS INC |
| Street | 1425 LAKE FRONT CIR |
| City | THE WOODLANDS |
| State | TX |
| Zip Code | 77380-3610 |
| Region | Southwestern |
| County | Montgomery County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2009-09-05 |
| Certificate Issue Date | 2016-07-06 |
| Last Action Date | 2022-04-28 |
| Expiration Date | 2029-07-31 |
| Status | Valid Registration |
| Mode S Code | 50776415 |
| Mode S Code Hex | A3FD0D |