| Tail Number / N-Number | N54BJ |
| Manufacturer | JOHNS |
| Model | MUSTANG MM-1-10 |
| Year Built | 1977 |
| Manufacturer's Serial Number | 763 |
| 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) |
| Engine Manufacturer | LYCOMING |
| Engine Model | 0-290 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 140 hp (104 kW) |
| Average Cruising Speed | 131 miles per hour |
| Type of Registrant | Individual |
| Owner Name | JOHNS WILLIAM L |
| Street | 30250 MIDWAY AVE |
| City | PAOLA |
| State | KS |
| Zip Code | 66071-4857 |
| Region | Central |
| County | Miami County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1979-10-19 |
| Certificate Issue Date | 1975-03-20 |
| Last Action Date | 2022-08-18 |
| Expiration Date | 2029-11-30 |
| Status | Valid Registration |
| Mode S Code | 51552665 |
| Mode S Code Hex | A6D5B5 |