# N31SK: 1975 Rolladen-Schneider OHG LS1-F

- Status: Valid registration
- Airframe: [Rolladen-Schneider OHG LS1-F](https://openairdocs.org/model/rolladen-schneider-ohg-ls1-f) (registry code 3801211, 1 seats)
- Engine: [NONE](https://openairdocs.org/engine/none) (registry code 00000)
- Data sheets: [TCDS G35EU](https://openairdocs.org/tcds/G35EU) (DG Aviation GmbH) (OpenAirDocs)
- Serial number: 275
- Year built: 1975
- Type: Glider
- Engine type: None
- Airworthiness: Standard, glider
- Airworthiness date: December 19, 2000
- Certificate issued: August 26, 2008
- Expires: June 30, 2028
- Mode S code: A34612
- Registered owner: [Bryan Danny J](https://openairdocs.org/faa-owner/BRYAN%20DANNY%20J)
- Location: [Hobbs, NM](https://openairdocs.org/faa-place/NM/Hobbs)
- Owner type: Individual
- Owner's area on the map: 32.7305° N, 103.1614° W: Placed by OpenAirDocs: center of Hobbs, NM, 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=31SK
- Page: https://openairdocs.org/aircraft/N31SK

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): 3 in force

### Matched by airframe (Rolladen-Schneider OHG LS1-F)

- [AD 97-08-06 R1](https://openairdocs.org/ad/97-08-06-R1): Quick Connectors · Alexander Schleicher AS-K 13, AS 12, ASK 21 and 39 more. Effective Aug 1, 1997
- [AD 82-17-02](https://openairdocs.org/ad/82-17-02): Airspeed Indicator · DG Flugzeugbau LS-3 and LS1-f. Effective Aug 16, 1982
- [AD 78-23-02](https://openairdocs.org/ad/78-23-02): Tow Release Mechanism · DG Flugzeugbau LS-3 and LS1-f. Effective Nov 16, 1978

### Matched by engine (NONE)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N31SK.

## NTSB investigations on N31SK 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 FTW87NA086](https://openairdocs.org/ntsb/FTW87NA086), Mar 28, 1987: Learjet 24A (N31SK), Eagle, CO, destroyed, 3 fatal

## FAA accident and incident reports

None matched to N31SK.

## Reports on N31SK not matched to an aircraft (2)

They name N31SK, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft.

- [Incident 19951226045269I](https://openairdocs.org/incident/19951226045269I), Dec 26, 1995: Mtsbsi MU2B20 (N31SK), Altoona, PA, Minor damage. Narrative: upon landing at Altoona the left brake locked causing the aircraft to slide off the runway to the left. Aircraft stopped 15 feet to the side of…
- [Accident 19870327007749A](https://openairdocs.org/incident/19870327007749A), Mar 27, 1987: Lear 24A (N31SK), Eagle, CO, Destroyed, 3 fatal. Flew into the side of a mountain at night on a circling approach. Clouds in area. Pilots charts didnt show mountain

## 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 N31SK

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N31SK before.

- [Cancelled (date not recorded)](https://openairdocs.org/deregistered/N31SK-undated): Learjet 24A, S/N 118. Triennial form not returned

## Related

- Other Rolladen-Schneider OHG LS1-F aircraft: https://openairdocs.org/model/rolladen-schneider-ohg-ls1-f/aircraft.md
- The NONE engine: https://openairdocs.org/engine/none.md

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