| Tail Number / N-Number | N4089H |
| Manufacturer | KROESCH DONALD F |
| Model | CHALLENGER II |
| Year Built | 1995 |
| Manufacturer's Serial Number | CH1091-0745 |
| 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 | BOMBARDIER |
| Engine Model | ROTAX (ALL) |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Type of Registrant | Individual |
| Owner Name | MULLER ALFRED J |
| Street | 1202 JACK OAK RD |
| City | CASSVILLE |
| State | WI |
| Zip Code | 53806-9607 |
| Region | Great Lakes |
| County | Grant County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 1995-07-12 |
| Certificate Issue Date | 2019-03-26 |
| Last Action Date | 2021-10-21 |
| Expiration Date | 2029-03-31 |
| Status | Valid Registration |
| Mode S Code | 51146764 |
| Mode S Code Hex | A4CDF4 |
Deregistered Aircraft 1 of 2. This aircraft was previously assigned the N-number N4089H.
| Tail Number / N-Number | N4089H |
| Manufacturer | MOONEY AIRCRAFT CORP. |
| Model | M20K |
| Year Built | 1980 |
| Manufacturer's Serial Number | 25-0466 |
| 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 |
| Type of Registrant | Individual |
| Owner Name | CHIDLOW GLEN |
| Street | PO BOX 1569 |
| City | PONOAK ALBERTA |
| County | Grant County |
| Country | CA |
| Last Status | Valid Registration |
| Cancellation Date | 1982-11-09 |
| Exported To | CANADA |
Deregistered Aircraft 2 of 2. This aircraft was previously assigned the N-number N4089H.
| Tail Number / N-Number | N4089H |
| Manufacturer | HELIO AIRCRAFT LTD |
| Model | H800 |
| Manufacturer's Serial Number | H14 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | 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 |
| County | Grant County |
| Last Status | N-Number Assigned – but has not yet been registered |