# N12911: 2009 Klemp Gregory J CHALLENGER II

- Status: Valid registration
- Airframe: [Klemp Gregory J CHALLENGER II](https://openairdocs.org/model/klemp-gregory-j-challenger-ii) (registry code 056281B, 2 seats)
- Engine: [Rotax 582DCDI](https://openairdocs.org/engine/rotax-582dcdi) (registry code 55562)
- Serial number: CH2-1296-1544
- 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: March 5, 2010
- Certificate issued: October 21, 2025
- Expires: October 31, 2032
- Mode S code: A077B6
- Registered owner: [Pekrul Keith R](https://openairdocs.org/faa-owner/PEKRUL%20KEITH%20R)
- Location: [Posen, MI](https://openairdocs.org/faa-place/MI/Posen)
- Owner type: Individual
- Owner's area on the map: 45.2322° N, 83.6804° W: Placed by OpenAirDocs at the center of ZIP code 49776, within about 7 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=12911
- Page: https://openairdocs.org/aircraft/N12911

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 (Klemp Gregory J CHALLENGER II)

None in force.

### Matched by engine (Rotax 582DCDI)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB CEN11FA433](https://openairdocs.org/ntsb/CEN11FA433), Jun 30, 2011: Klemp Gregory J Challenger II (N12911), Neshkoro, WI, substantial damage, 1 fatal. Probable cause: The total loss of engine power during the initial climb due to a cold seizure as a result of a broken fan V-belt. Contributing to the accident was the passenger's interference with the flight…

## 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.

- [Accident 20110629011649A](https://openairdocs.org/incident/20110629011649A), Jun 29, 2011: Klemp Gregory J CHALLENGER II (N12911), Neshkoro, WI, Destroyed, 1 fatal. On June 29, 2011 at 1935 pilot [privacy data omitted] (broken rib and minor leg and neck soreness) was taking gordon sheveland (fatality) on a demo ride. At…

## Service difficulty reports (1)

As reported by operators and repair stations. Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.

- [SDR 2011FA0000480](https://openairdocs.org/sdr/2011FA0000480), Jun 29, 2011: BELT. BROKEN. COOLING FAN BELT BROKE IN FLIGHT CAUSING THE ENGINE TO OVERHEAT AND THEN SEIZED.

## STCs that may be installed (OpenAirDocs)

None matched to this aircraft's models.

## Earlier aircraft with N12911

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N12911 before.

- [Cancelled 1973-10-31](https://openairdocs.org/deregistered/N12911-1973-10-31): Cessna 172M, S/N 17262364. Exported to Nicaragua. Owner: [Cessna Aircraft Co](https://openairdocs.org/faa-owner/CESSNA%20AIRCRAFT%20CO), [Wichita, KS](https://openairdocs.org/faa-place/KS/Wichita)

## Related

- Other Klemp Gregory J CHALLENGER II aircraft: https://openairdocs.org/model/klemp-gregory-j-challenger-ii/aircraft.md
- The Rotax 582DCDI engine: https://openairdocs.org/engine/rotax-582dcdi.md

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