| Tail Number / N-Number | N3840G |
| Manufacturer | LITTLE KEENE H |
| Model | CHALLENGER II |
| Year Built | 2009 |
| Manufacturer's Serial Number | CH2-1005-2691 |
| Aircraft Type | Fixed wing single engine |
| Category | Amphibian |
| 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 | 503UL |
| Engine Type | 2 Cycle |
| Number of Engines | 1 engine |
| Horsepower | 52 hp (39 kW) |
| Kit Manufacturer | QUAD CITY ULTRALIGHT ACFT CORP |
| Kit Model | CHALLENGER II |
| Type of Registrant | Individual |
| Owner Name | LITTLE KEENE H |
| Street | 815 POPLAR ST |
| City | SANDPOINT |
| State | ID |
| Zip Code | 83864-1943 |
| Region | Northwest Mountain |
| County | Bonner County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Experimental |
| Airworthiness Date | 2009-08-20 |
| Certificate Issue Date | 2017-03-14 |
| Last Action Date | 2022-12-27 |
| Expiration Date | 2030-03-31 |
| Status | Valid Registration |
| Mode S Code | 51066205 |
| Mode S Code Hex | A46C85 |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N3840G.
| Tail Number / N-Number | N3840G |
| Manufacturer | CESSNA |
| Model | 310R |
| Manufacturer's Serial Number | 310R0927 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 6 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 | MAINE AVIATION CORP |
| Street | PORTLAND INTL ARPT |
| City | PORTLAND |
| State | ME |
| Zip Code | 04100 |
| Region | New England |
| County | Bonner County |
| Certificate Issue Date | 1977-08-22 |
| Last Status | Valid Registration |
| Cancellation Date | 1977-12-13 |
| Exported To | CANADA |