| Tail Number / N-Number | N504M |
| Manufacturer | NAYLOR WILLIAM |
| Model | AIRBIKE |
| Year Built | 2005 |
| Manufacturer's Serial Number | 504M-1 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Light Sport |
| Number of Seats | 1 seat |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | ROTAX |
| Engine Model | 447 |
| Engine Type | 2 Cycle |
| Number of Engines | 1 engine |
| Horsepower | 40 hp (30 kW) |
| Type of Registrant | Individual |
| Owner Name | REPPERT MERLYN |
| Street | 5301 HARRISON RD |
| City | PARADISE |
| State | CA |
| Zip Code | 95969-6691 |
| Region | Western-Pacific |
| County | Butte County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2010-10-23 |
| Certificate Issue Date | 2023-02-16 |
| Last Action Date | 2023-02-16 |
| Expiration Date | 2030-02-28 |
| Status | Valid Registration |
| Mode S Code | 51444737 |
| Mode S Code Hex | A649DF |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N504M.
| Tail Number / N-Number | N504M |
| Manufacturer | NICHOLAS BEAZLEY AIRPLANE CO |
| Model | NB-3 |
| Year Built | 1929 |
| Manufacturer's Serial Number | 27 |
| 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) |
| Number of Engines | 1 engine |
| Type of Registrant | Corporation |
| Owner Name | DAWSON-BABCOCK AIRCRAFT CORP |
| Street | 5867 WILKINS AVE |
| City | PITTSBURGH |
| State | PA |
| Zip Code | 15122 |
| Region | Eastern |
| County | Butte County |
| Certificate Issue Date | 1933-06-15 |
| Last Status | Valid Registration |
| Cancellation Date | 1932-08-04 |