# N237T: 2005 Windward Performance SPARROW HAWK

- Status: Valid registration
- Airframe: [Windward Performance SPARROW HAWK](https://openairdocs.org/model/windward-performance-sparrow-hawk) (registry code 05901NB, 1 seats)
- Engine: [NONE](https://openairdocs.org/engine/none) (registry code 00000)
- Serial number: 016
- Year built: 2005
- Type: Glider
- Engine type: None
- Airworthiness: Experimental, registered before 01/31/08
- Airworthiness date: May 21, 2008
- Certificate issued: February 3, 2025
- Expires: February 29, 2032
- Mode S code: A2242A
- Registered owner: [Kao Peter N](https://openairdocs.org/faa-owner/KAO%20PETER%20N)
- Location: [Palo Alto, CA](https://openairdocs.org/faa-place/CA/Palo%20Alto)
- Owner type: Individual
- Owner's area on the map: 37.4162° N, 122.1309° W: Placed by OpenAirDocs at the center of ZIP code 94306, 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=237T
- Page: https://openairdocs.org/aircraft/N237T

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): 0 in force

### Matched by airframe (Windward Performance SPARROW HAWK)

None in force.

### Matched by engine (NONE)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N237T.

## FAA accident and incident reports

None matched to N237T.

## 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 N237T

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N237T before.

- [Cancelled 2005-09-29](https://openairdocs.org/deregistered/N237T-2005-09-29): Piper PA-18 105, S/N 18-2351, built 1953. Second triennial mailing, no response. Owner: [Barnwell Lloyd H](https://openairdocs.org/faa-owner/BARNWELL%20LLOYD%20H), [Douglas, GA](https://openairdocs.org/faa-place/GA/Douglas)

## Related

- Other Windward Performance SPARROW HAWK aircraft: https://openairdocs.org/model/windward-performance-sparrow-hawk/aircraft.md
- The NONE engine: https://openairdocs.org/engine/none.md

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.