# N441MS: 2004 Schumacher Michael CHALLENGER II

- Status: Valid registration
- Airframe: [Schumacher Michael CHALLENGER II](https://openairdocs.org/model/schumacher-michael-challenger-ii) (registry code 05903XS, 2 seats)
- Engine: [Rotax 503 DCDI](https://openairdocs.org/engine/rotax-503-dcdi) (registry code 55566)
- Serial number: CH2-1200-CW-2039
- Year built: 2004
- Type: Fixed wing single engine
- Engine type: 2 cycle
- Airworthiness: Experimental, registered before 01/31/08
- Airworthiness date: October 20, 2007
- Certificate issued: October 4, 2007
- Expires: August 31, 2028
- Mode S code: A54F78
- Registered owner: [Schumacher Michael](https://openairdocs.org/faa-owner/SCHUMACHER%20MICHAEL)
- Location: [Sidney, IL](https://openairdocs.org/faa-place/IL/Sidney)
- Owner type: Individual
- Owner's area on the map: 39.9929° N, 88.0759° W: Placed by OpenAirDocs at the center of ZIP code 61877, within about 3 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=441MS
- Page: https://openairdocs.org/aircraft/N441MS

From the FAA registry file of October 22, 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 (Schumacher Michael CHALLENGER II)

None in force.

### Matched by engine (Rotax 503 DCDI)

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 CEN14LA309](https://openairdocs.org/ntsb/CEN14LA309), Jun 21, 2014: Schumacher Challenger II (N441MS), St. Joesph, IL, substantial damage. Probable cause: The total loss of engine power due to a lack of lubrication following the in-flight failure of the mechanical oil injection pump. Contributing to the accident was the temporary obscuration of the…

## 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 20140620009219A](https://openairdocs.org/incident/20140620009219A), Jun 20, 2014: Schumacher Michael CHALLENGER II (N441MS), St. Joseph, IL, Substantial damage. The engine quit during cruise flight. During an off airport landing in an open soy bean field, the pilot was momentairly blinded by the sun and the aircraft…

## 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 N441MS

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N441MS before.

- [Cancelled 1998-08-19](https://openairdocs.org/deregistered/N441MS-1998-08-19): Cessna 441, S/N 4410056. Triennial form not returned. Owner: [S & S Limited Inc](https://openairdocs.org/faa-owner/S%20%26%20S%20LIMITED%20INC), [Akron, OH](https://openairdocs.org/faa-place/OH/Akron)
- [Cancelled 1988-07-21](https://openairdocs.org/deregistered/N441MS-1988-07-21): Cessna 441, S/N 4410059. N-number assigned, not yet registered

## Related

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

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