# N120SW: 2014 William M Clapp CLAPP-SABERWING

- Status: Valid registration
- Airframe: [William M Clapp CLAPP-SABERWING](https://openairdocs.org/model/william-m-clapp-clapp-saberwing) (registry code 05633X7, 2 seats)
- Engine: [Amateur-built UNKNOWN ENG](https://openairdocs.org/engine/amateur-built-unknown-eng) (registry code 99999)
- Serial number: CLAPP04
- Year built: 2014
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Experimental, amateur built
- Airworthiness date: November 22, 2014
- Certificate issued: November 10, 2014
- Expires: November 30, 2027
- Mode S code: A05557
- Registered owner: [Clapp William M](https://openairdocs.org/faa-owner/CLAPP%20WILLIAM%20M)
- Location: [Valdosta, GA](https://openairdocs.org/faa-place/GA/Valdosta)
- Owner type: Individual
- Owner's area on the map: 30.7987° N, 83.1799° W: Placed by OpenAirDocs at the center of ZIP code 31606, 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=120SW
- Page: https://openairdocs.org/aircraft/N120SW

From the FAA registry file of October 22, 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 (William M Clapp CLAPP-SABERWING)

None in force.

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

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 ERA24LA258](https://openairdocs.org/ntsb/ERA24LA258), Jun 11, 2024: Clapp Saberwing (N120SW), Valdosta, GA, substantial damage. Probable cause: The total loss of engine power due to the shearing of the woodruff key that indexed the crankshaft gear and hub assembly to the crankshaft, which resulted in the gear and hub rotating from their…

## 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 20240610015799A](https://openairdocs.org/incident/20240610015799A), Jun 10, 2024: William M Clapp CLAPP-SABERWING (N120SW), Valdosta, GA, Destroyed. The Valdosta regional airport air traffic control tower received an emergency declaration due to an engine failure. Pilot reported engine failure eight miles…

## Reports on N120SW not matched to an aircraft (1)

They name N120SW, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft.

- [Incident 20101019049129I](https://openairdocs.org/incident/20101019049129I), Oct 19, 2010: Cessna T210N (N120SW), Telluride, CO, Minor damage. Pilot reported normal approach. Immediately after touchdown the nose gear collapsed. Main gear remained down and locked. Pilot shut down aircraft and exited.

## 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.

## Related

- Other William M Clapp CLAPP-SABERWING aircraft: https://openairdocs.org/model/william-m-clapp-clapp-saberwing/aircraft.md
- The Amateur-built UNKNOWN ENG engine: https://openairdocs.org/engine/amateur-built-unknown-eng.md

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