# N91BT: 1985 Rolladen-Schneider LS-6

- Status: Valid registration
- Airframe: [Rolladen-Schneider LS-6](https://openairdocs.org/model/rolladen-schneider-ls-6) (registry code 3801260, 1 seats)
- Engine: [Amateur-built UNKNOWN ENG](https://openairdocs.org/engine/amateur-built-unknown-eng) (registry code 99999)
- Serial number: 6004
- Year built: 1985
- Type: Glider
- Engine type: None
- Airworthiness: Experimental, amateur built
- Airworthiness date: April 4, 1985
- Certificate issued: December 12, 2025
- Expires: December 31, 2032
- Mode S code: AC947D
- Registered owner: [Mitchell Timothy M](https://openairdocs.org/faa-owner/MITCHELL%20TIMOTHY%20M)
- Location: [Tucson, AZ](https://openairdocs.org/faa-place/AZ/Tucson)
- Owner type: Individual
- Owner's area on the map: 32.3394° N, 110.9850° W: Placed by OpenAirDocs at the center of ZIP code 85704, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=91BT
- Page: https://openairdocs.org/aircraft/N91BT

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 (Rolladen-Schneider LS-6)

None in force.

### Matched by engine (Amateur-built UNKNOWN ENG)

None in force.

## Information bulletins (advisory) (2 in force)

- [SAIB CE-01-24](https://openairdocs.org/saib/CE-01-24): . Issued May 30, 2001
- [SAIB CE-00-01](https://openairdocs.org/saib/CE-00-01): . Issued Oct 7, 1999

## NTSB investigations

None matched to N91BT.

## 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 20190610006501I](https://openairdocs.org/incident/20190610006501I), Jun 10, 2019: Rolladen-Schneider LS-6 (N91BT), Stanton, MN, Minor damage. The tow aircraft and glider depart ksyn airport on rwy 27 headed straight west with a 20 knot headwind. 3 miles west of the airport the two airplanes made a…

## 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 Rolladen-Schneider LS-6 aircraft: https://openairdocs.org/model/rolladen-schneider-ls-6/aircraft.md
- The Amateur-built UNKNOWN ENG engine: https://openairdocs.org/engine/amateur-built-unknown-eng.md

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