# N3840G: 2009 Little Keene H CHALLENGER II

- Status: Valid registration
- Airframe: [Little Keene H CHALLENGER II](https://openairdocs.org/model/little-keene-h-challenger-ii) (registry code 056247V, 2 seats)
- Engine: [Rotax 503UL](https://openairdocs.org/engine/rotax-503ul) (registry code 55565)
- Serial number: CH2-1005-2691
- Year built: 2009
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Kit: Quad City Ultralight Acft Corp CHALLENGER II
- Airworthiness: Experimental, amateur built
- Airworthiness date: August 20, 2009
- Certificate issued: March 14, 2017
- Expires: March 31, 2030
- Mode S code: A46C85
- Registered owner: [Little Keene H](https://openairdocs.org/faa-owner/LITTLE%20KEENE%20H)
- Location: [Sandpoint, ID](https://openairdocs.org/faa-place/ID/Sandpoint)
- Owner type: Individual
- Owner's area on the map: 48.4349° N, 116.5043° W: Placed by OpenAirDocs at the center of ZIP code 83864, within about 11 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=3840G
- Page: https://openairdocs.org/aircraft/N3840G

From the FAA registry file of October 24, 2026. ADs below are matched by the registry's airframe and engine model codes. They may apply; each AD's applicability can narrow it by serial number, part number or installed equipment. This is not a compliance determination.

## ADs that may apply (OpenAirDocs): 0 in force

### Matched by airframe (Little Keene H CHALLENGER II)

None in force.

### Matched by engine (Rotax 503UL)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N3840G.

## FAA accident and incident reports (1)

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [Incident 20100831046129I](https://openairdocs.org/incident/20100831046129I), Aug 31, 2010: Little Keen CHALLENGER (N3840G), Watertown, NY, Minor damage. Aircraft suddenly lost power while operating in cruise at 100 ft AGL and made an emergency landing on the saint lawrence river. The aircraft flipped over and…

## Service difficulty reports

None filed for this aircraft. Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.

## STCs that may be installed (OpenAirDocs)

None matched to this aircraft's models.

## Earlier aircraft with N3840G

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N3840G before.

- [Cancelled 1977-12-13](https://openairdocs.org/deregistered/N3840G-1977-12-13): Cessna 310R, S/N 310R0927. Exported to Canada. Owner: [Maine Aviation Corp](https://openairdocs.org/faa-owner/MAINE%20AVIATION%20CORP), [Portland, ME](https://openairdocs.org/faa-place/ME/Portland)

## Related

- Other Little Keene H CHALLENGER II aircraft: https://openairdocs.org/model/little-keene-h-challenger-ii/aircraft.md
- The Rotax 503UL engine: https://openairdocs.org/engine/rotax-503ul.md

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