# N989MC: 2006 Diamore Michael CHALLENGER II

- Status: Valid registration
- Airframe: [Diamore Michael CHALLENGER II](https://openairdocs.org/model/diamore-michael-challenger-ii) (registry code 05903FU, 2 seats)
- Engine: [Rotax 503 DCDI](https://openairdocs.org/engine/rotax-503-dcdi) (registry code 55566)
- Serial number: CH2-0403-2317
- Year built: 2006
- Type: Fixed wing single engine
- Engine type: 2 cycle
- Airworthiness: Experimental, registered before 01/31/08
- Airworthiness date: October 3, 2007
- Certificate issued: February 28, 2026
- Expires: February 28, 2033
- Mode S code: ADCDA9
- Registered owner: [Crombie Benjamin](https://openairdocs.org/faa-owner/CROMBIE%20BENJAMIN)
- Location: [Flippin, AR](https://openairdocs.org/faa-place/AR/Flippin)
- Owner type: Individual
- Owner's area on the map: 36.2458° N, 92.5596° W: Placed by OpenAirDocs at the center of ZIP code 72634, within about 6 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=989MC
- Page: https://openairdocs.org/aircraft/N989MC

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 (Diamore Michael CHALLENGER II)

None in force.

### Matched by engine (Rotax 503 DCDI)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N989MC.

## NTSB investigations on N989MC not matched to an aircraft (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 DEN72FTE51](https://openairdocs.org/ntsb/DEN72FTE51-164696), Jan 12, 1972: Cessna 421B (N989MC), Denver, CO, substantial damage

## FAA accident and incident reports

None matched to N989MC.

## 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.

## Related

- Other Diamore Michael CHALLENGER II aircraft: https://openairdocs.org/model/diamore-michael-challenger-ii/aircraft.md
- The Rotax 503 DCDI engine: https://openairdocs.org/engine/rotax-503-dcdi.md

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