| Tail Number / N-Number | N6991X |
| Manufacturer | QUAD CITIES |
| Model | CHALLENGER II |
| Year Built | 2003 |
| Manufacturer's Serial Number | QCCII-CW-6991-001 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Light Sport |
| Number of Seats | 2 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | ROTAX |
| Engine Model | 503 SERIES |
| Engine Type | 2 Cycle |
| Number of Engines | 1 engine |
| Horsepower | 52 hp (39 kW) |
| Type of Registrant | Individual |
| Owner Name | FRENCH SCOTT B |
| Street | 4761 N ALBURNETT RD |
| City | CENTRAL CITY |
| State | IA |
| Zip Code | 52214-9724 |
| Region | Central |
| County | Linn County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2007-11-16 |
| Certificate Issue Date | 2007-11-05 |
| Last Action Date | 2021-10-21 |
| Expiration Date | 2029-02-28 |
| Status | Valid Registration |
| Mode S Code | 52247266 |
| Mode S Code Hex | A94EB6 |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N6991X.
| Tail Number / N-Number | N6991X |
| Manufacturer | CESSNA |
| Model | 172B |
| Manufacturer's Serial Number | 17247891 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 4 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 1 engine |
| Average Cruising Speed | 105 miles per hour |
| Type of Registrant | Corporation |
| Owner Name | CESSNA AICRAFT CO |
| Street | 5800 PAWNEE RD |
| City | WICHITA |
| State | KS |
| Zip Code | 67207 |
| Region | Central |
| County | Linn County |
| Last Status | Valid Registration |
| Cancellation Date | 1961-01-30 |
| Exported To | ANGOLA |