| Tail Number / N-Number | N523MY |
| Manufacturer | ELDER WILLIAM E JR |
| Model | KOLB MARK III CLSIC |
| Year Built | 2003 |
| Manufacturer's Serial Number | MT99-4-00012 |
| 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 | ROTAX |
| Engine Model | SEE BOMBADIER |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Kit Manufacturer | NEW KOLB AIRCRAFT |
| Kit Model | MK III |
| Type of Registrant | Individual |
| Owner Name | ELDER WILLIAM E JR |
| Street | 4973 KIT CARSON DR |
| City | BROOMFIELD |
| State | CO |
| Zip Code | 80023-8339 |
| Region | Northwest Mountain |
| County | Broomfield County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2003-11-03 |
| Certificate Issue Date | 2003-08-29 |
| Last Action Date | 2020-08-22 |
| Expiration Date | 2028-01-31 |
| Status | Valid Registration |
| Mode S Code | 51512475 |
| Mode S Code Hex | A6953D |