| Tail Number / N-Number | N19BK |
| Manufacturer | KELLY WILLIAM B |
| Model | CHALLENGER II |
| Year Built | 2001 |
| Manufacturer's Serial Number | CH2-0601-2100 |
| 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 | AMA/EXPR |
| Engine Model | UNKNOWN ENG |
| Number of Engines | 1 engine |
| Kit Manufacturer | QUAD CITY ULTRALIGHT ACFT CORP |
| Kit Model | CHALLENGER II |
| Type of Registrant | Individual |
| Owner Name | CERUTTI ROBERT L JR |
| Street | 1412 DANIELS AVE |
| City | ALTOONA |
| State | WI |
| Zip Code | 54720-1737 |
| Region | Great Lakes |
| County | Eau Claire County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2002-02-12 |
| Certificate Issue Date | 2013-01-17 |
| Last Action Date | 2021-08-13 |
| Expiration Date | 2029-01-31 |
| Status | Valid Registration |
| Mode S Code | 50262765 |
| Mode S Code Hex | A165F5 |
Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N19BK.
| Tail Number / N-Number | N19BK |
| Manufacturer | BEECH |
| Model | C90A |
| Manufacturer's Serial Number | LJ1294 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 9 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 2 engines |
| Type of Registrant | Corporation |
| Owner Name | DELA CORPORATION |
| Street | 501 BRICKELL KEY DR STE 400 |
| City | MIAMI |
| State | FL |
| Zip Code | 33131-2624 |
| County | Eau Claire County |
| Country | US |
| Certificate Issue Date | 1997-08-01 |
| Last Action Date | 1997-08-01 |
| Last Status | Valid Registration |
| Cancellation Date | 1999-08-16 |
| Exported To | BRAZIL |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N19BK.
| Tail Number / N-Number | N19BK |
| Manufacturer | KOONTZ WILLIAM D |
| Model | SONERAI I |
| Manufacturer's Serial Number | 651 |
| 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) |
| Number of Engines | 1 engine |
| Type of Registrant | Individual |
| Owner Name | KOONTZ WILLIAM D |
| Street | 518 FLOYD |
| City | JONESBORO |
| State | AR |
| Zip Code | 72401 |
| County | Eau Claire County |
| Country | US |
| Certificate Issue Date | 1990-06-15 |
| Last Action Date | 1993-12-21 |
| Last Status | The Triennial Aircraft Registration form was mailed and has not been returned by the Post Office |
| Cancellation Date | 1994-01-27 |