Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N552SB.
| Tail Number / N-Number | N552SB |
| Manufacturer | MERRILL STEVEN W |
| Model | CHALLENGER II |
| Year Built | 2005 |
| Manufacturer's Serial Number | CH2-0901-2138 |
| 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 | QUAD CITY ULTRALIGHT ACFT CORP |
| Kit Model | CHALLENGER II |
| Type of Registrant | Individual |
| Owner Name | MERRILL STEVEN W |
| Street | PO BOX 254 |
| City | KNIFE RIVER |
| State | MN |
| Zip Code | 55609-0254 |
| Country | US |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2005-03-03 |
| Certificate Issue Date | 2002-07-02 |
| Last Action Date | 2014-05-12 |
| Last Status | Valid Registration |
| Cancellation Date | 2016-10-12 |
| Mode S Code | 51604153 |
| Mode S Code Hex | A7086B |