# N9JK: 1975 Schweizer SGS 1-35

- Status: Valid registration
- Airframe: [Schweizer SGS 1-35](https://openairdocs.org/model/schweizer-sgs-1-35) (registry code 8050148, 1 seats)
- Engine: [NONE](https://openairdocs.org/engine/none) (registry code 00000)
- Data sheets: [TCDS G4EA](https://openairdocs.org/tcds/G4EA) (K & L Soaring LLC) (OpenAirDocs)
- Serial number: 18
- Year built: 1975
- Type: Glider
- Engine type: None
- Airworthiness: Standard, glider
- Airworthiness date: January 16, 1975
- Certificate issued: January 31, 1987
- Expires: November 30, 2029
- Mode S code: AC6B4C
- Registered owner: [Stewart James D](https://openairdocs.org/faa-owner/STEWART%20JAMES%20D)
- Location: [Trussville, AL](https://openairdocs.org/faa-place/AL/Trussville)
- Owner type: Individual
- Owner's area on the map: 33.6553° N, 86.5630° W: Placed by OpenAirDocs at the center of ZIP code 35173, 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=9JK
- Page: https://openairdocs.org/aircraft/N9JK

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): 1 in force

### Matched by airframe (Schweizer SGS 1-35)

- [AD 87-02-01](https://openairdocs.org/ad/87-02-01): Tow-Release Installation Inspection · K & L Soaring SGM 2-37, SGS 1-23, SGS 1-23D and 32 more. Effective Jan 21, 1987

### Matched by engine (NONE)

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 NYC85FHM01](https://openairdocs.org/ntsb/NYC85FHM01), Jun 2, 1985: Schweizer SGS-1-35 (N9JK), Middletown, NY, substantial damage

## 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 19850602058459A](https://openairdocs.org/incident/19850602058459A), Jun 2, 1985: Scwzer SGS135 (N9JK), Middletown, NY, Substantial damage. Recovered from stall spin with loss of altitude in pattern. Landed on highway unusually hard.

## 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) (2)

Approved for this aircraft's airframe or engine model, in force first, then newest. The registry doesn't record which STCs an aircraft has; its records do.

### Approved for the airframe (Schweizer SGS 1-35)

- [STC SA01734SE](https://openairdocs.org/stc/SA01734SE): Application of Stewart Systems synthetic fabric covering system to aircraft fuselage, wings, tail surfaces, control surfaces and related parts. Andrew D. Humphrey
- [STC SG01164CH](https://openairdocs.org/stc/SG01164CH): Install Cooper superflite 102 fabric. Aviation Products Systems Inc

## Related

- Other Schweizer SGS 1-35 aircraft: https://openairdocs.org/model/schweizer-sgs-1-35/aircraft.md
- The NONE engine: https://openairdocs.org/engine/none.md

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