# N90492: 1951 Slingsby TYPE 21B SEDBERGH

- Status: Valid registration
- Airframe: [Slingsby TYPE 21B SEDBERGH](https://openairdocs.org/model/slingsby-type-21b-sedbergh) (registry code 8321506, 2 seats)
- Engine: [Amateur-built UNKNOWN ENG](https://openairdocs.org/engine/amateur-built-unknown-eng) (registry code 99999)
- Serial number: WG497
- Year built: 1951
- Type: Glider
- Engine type: None
- Airworthiness: Experimental, exhibition
- Airworthiness date: August 29, 1988
- Certificate issued: March 15, 2012
- Expires: March 31, 2028
- Mode S code: AC81B6
- Registered owner: [Closson Luke E Jr](https://openairdocs.org/faa-owner/CLOSSON%20LUKE%20E%20JR)
- Location: [Valdosta, GA](https://openairdocs.org/faa-place/GA/Valdosta)
- Owner type: Individual
- Owner's area on the map: 30.9330° N, 83.2218° W: Placed by OpenAirDocs at the center of ZIP code 31605, within about 4 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=90492
- Page: https://openairdocs.org/aircraft/N90492

From the FAA registry file of October 27, 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 (Slingsby TYPE 21B SEDBERGH)

None in force.

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

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N90492.

## FAA accident and incident reports

None matched to N90492.

## 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 N90492

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N90492 before.

- [Cancelled 1968-02-21](https://openairdocs.org/deregistered/N90492-1968-02-21): Hiller UH-12L4, S/N 2538. Exported to Canada. Owner: [Fairchild Hiller Corp Aircraft Division](https://openairdocs.org/faa-owner/FAIRCHILD%20HILLER%20CORP%20AIRCRAFT%20DIVISION), [Hagerstown, MD](https://openairdocs.org/faa-place/MD/Hagerstown)

## Related

- Other Slingsby TYPE 21B SEDBERGH aircraft: https://openairdocs.org/model/slingsby-type-21b-sedbergh/aircraft.md
- The Amateur-built UNKNOWN ENG engine: https://openairdocs.org/engine/amateur-built-unknown-eng.md

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