# N17921: 1973 Schweizer SGS 1-34

- Status: Valid registration
- Airframe: [Schweizer SGS 1-34](https://openairdocs.org/model/schweizer-sgs-1-34) (registry code 8050146, 1 seats)
- Engine: [NONE](https://openairdocs.org/engine/none) (registry code 00000)
- Data sheets: [TCDS G3EA](https://openairdocs.org/tcds/G3EA) (K & L Soaring LLC) (OpenAirDocs)
- Serial number: 81
- Year built: 1973
- Type: Glider
- Engine type: None
- Airworthiness: Standard, glider
- Airworthiness date: April 12, 1973
- Certificate issued: July 20, 2023
- Expires: July 31, 2030
- Mode S code: A13D54
- Registered owner: [Cumberland Soaring Group Inc](https://openairdocs.org/faa-owner/CUMBERLAND%20SOARING%20GROUP%20INC)
- Location: [Wiley Ford, WV](https://openairdocs.org/faa-place/WV/Wiley%20Ford)
- Owner type: Corporation
- Owner's area on the map: 39.6159° N, 78.7567° W: Placed by OpenAirDocs at the center of ZIP code 26767, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=17921
- Page: https://openairdocs.org/aircraft/N17921

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 1-34)

- [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 N17921.

## FAA accident and incident reports

None matched to N17921.

## 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.

## Service difficulty reports on N17921 not matched to an aircraft (3)

They name N17921, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft.

- [SDR UIAA010208001](https://openairdocs.org/sdr/UIAA010208001), Jan 2, 2008: ACTUATOR. MALFUNCTIONED. DURING TAXI,THE (R ENG SYS FAIL) MSG SHOW ON EOAP. BITE RT ENGINE EEC FND (VSV ACT/HC/EEC2) CLM MSG. IAW AMM 75-31-01 REPLACED R ENG VSV ACTUATOR. PERFORM R ENG
- [SDR UIA9209](https://openairdocs.org/sdr/UIA9209), Nov 17, 2003: FRAME. CORRODED. PFM C04 CHK FOUND CORROSION ON FUSELAGE FRAME LOWER TEE CHORD AT STA Y-1437 L29R-L26R, CUT THE CORROSION PORTION OF T-CHRD. TRIM OUT THE INTERCOSTAL FORWARD SID
- [SDR UIA02001](https://openairdocs.org/sdr/UIA02001), Feb 28, 2002: BEARING. DAMAGED. FLT 6182 FROM KNH TO TSA, PILOT REPORT R AC POWER FAULT SHOW ON EOAP AFTER LANDING MECHANIC CHECK FOUND BEARING DAMAGE OF ENGINE GEAR BOX, IAW AMM71-00-00. REPL

## STCs that may be installed (OpenAirDocs) (1)

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 1-34)

- [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

## Earlier aircraft with N17921

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N17921 before.

- [Cancelled 1951-06-15](https://openairdocs.org/deregistered/N17921-1951-06-15): Piper J-2, S/N 1521. Owner: [Kuhl Albert G](https://openairdocs.org/faa-owner/KUHL%20ALBERT%20G), [Niles, MI](https://openairdocs.org/faa-place/MI/Niles)

## Related

- Other Schweizer SGS 1-34 aircraft: https://openairdocs.org/model/schweizer-sgs-1-34/aircraft.md
- The NONE engine: https://openairdocs.org/engine/none.md

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