# N7566: 1969 Schweizer SGS 1-26D

- Status: Valid registration
- Airframe: [Schweizer SGS 1-26D](https://openairdocs.org/model/schweizer-sgs-1-26d) (registry code 8050122, 1 seats)
- Engine: [NONE](https://openairdocs.org/engine/none) (registry code 00000)
- Data sheets: [TCDS 1G10](https://openairdocs.org/tcds/1G10) (K & L Soaring LLC) (OpenAirDocs)
- Serial number: 466
- Year built: 1969
- Type: Glider
- Engine type: None
- Airworthiness: Standard, normal
- Airworthiness date: September 16, 1969
- Certificate issued: July 27, 2023
- Expires: July 31, 2030
- Mode S code: AA337D
- Registered owner: [Briscoe Robert Dale](https://openairdocs.org/faa-owner/BRISCOE%20ROBERT%20DALE)
- Location: [Fort Stockton, TX](https://openairdocs.org/faa-place/TX/Fort%20Stockton)
- Owner type: Individual
- Owner's area on the map: 30.7887° N, 102.8238° W: Placed by OpenAirDocs at the center of ZIP code 79735, within about 20 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=7566
- Page: https://openairdocs.org/aircraft/N7566

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): 2 in force

### Matched by airframe (Schweizer SGS 1-26D)

- [AD 87-17-01](https://openairdocs.org/ad/87-17-01): Tow Release Installation · K & L Soaring SGS 1-23, SGS 1-23D, SGS 1-23F and 25 more. Effective Aug 19, 1988
- [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

None matched to N7566.

## NTSB investigations on N7566 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 CHI79FA077](https://openairdocs.org/ntsb/CHI79FA077), Sep 18, 1979: Boeing 707 (N7566), Palatine, IL, substantial damage

## FAA accident and incident reports

None matched to N7566.

## Reports on N7566 not matched to an aircraft (2)

They name N7566, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft.

- [Incident 19790918023749I](https://openairdocs.org/incident/19790918023749I), Sep 18, 1979: Boeing 707/ (N7566), Chicago, IL, Substantial damage. Inboard section of left flap separated at 10000 ft during descent. Captain landed using assymetrical procedures.
- [Incident 19790817031889I](https://openairdocs.org/incident/19790817031889I), Aug 17, 1979: Boeing 727 (N7566), Chicago, IL. Hydraulic leak in a system. Supply line replaced.

## 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) (4)

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 1-26D)

- [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
- [STC SG1265GL](https://openairdocs.org/stc/SG1265GL): Surrendered and incorporated into STC SG01164CH. Cooper Aviation Supply Company, Inc
- [STC SG4WE](https://openairdocs.org/stc/SG4WE): Ceconite 101 covering of complete aircraft. Cooper Engineering Corporation. Lists SGS 1-26 Series

## Related

- Other Schweizer SGS 1-26D aircraft: https://openairdocs.org/model/schweizer-sgs-1-26d/aircraft.md
- The NONE engine: https://openairdocs.org/engine/none.md

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