# N1975J: 1998 Harper Donald D RANS S-6ES

- Status: Valid registration
- Airframe: [Harper Donald D RANS S-6ES](https://openairdocs.org/model/harper-donald-d-rans-s-6es) (registry code 05901AI, 2 seats)
- Engine: [Rotax 912UL series](https://openairdocs.org/engine/rotax-912ul-series) (registry code 55571)
- Serial number: 0496982ES
- Year built: 1998
- Type: Fixed wing single engine
- Engine type: 4 cycle
- Airworthiness: Experimental, registered before 01/31/08
- Airworthiness date: September 9, 2006
- Certificate issued: August 5, 2022
- Expires: August 31, 2029
- Mode S code: A1853C
- Registered owner: [Cooper William P](https://openairdocs.org/faa-owner/COOPER%20WILLIAM%20P)
- Location: [Collinsville, OK](https://openairdocs.org/faa-place/OK/Collinsville)
- Owner type: Individual
- Owner's area on the map: 36.3788° N, 95.8458° W: Placed by OpenAirDocs at the center of ZIP code 74021, within about 5 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=1975J
- Page: https://openairdocs.org/aircraft/N1975J

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. The registry lists only the engine series, so ADs for every Rotax 912UL model are included.

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

### Matched by airframe (Harper Donald D RANS S-6ES)

None in force.

### Matched by engine (Rotax 912UL series)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N1975J.

## FAA accident and incident reports

None matched to N1975J.

## 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 N1975J

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N1975J before.

- [Cancelled 1999-09-16](https://openairdocs.org/deregistered/N1975J-1999-09-16): Beech B36TC, S/N EA-488. Owner: [Jacksons Food Stores Inc](https://openairdocs.org/faa-owner/JACKSONS%20FOOD%20STORES%20INC), [Meridian, ID](https://openairdocs.org/faa-place/ID/Meridian)
- [Cancelled 1979-04-02](https://openairdocs.org/deregistered/N1975J-1979-04-02): Cessna A188B, S/N A188B, built 1978. Exported to Greece. Owner: [Cessna Aircraft Company](https://openairdocs.org/faa-owner/CESSNA%20AIRCRAFT%20COMPANY), Zaventem

## Related

- Other Harper Donald D RANS S-6ES aircraft: https://openairdocs.org/model/harper-donald-d-rans-s-6es/aircraft.md
- The Rotax 912UL series engine: https://openairdocs.org/engine/rotax-912ul-series.md

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