# N321AD: 2016 Alisport SILENT 2 ELECTRO

- Status: Valid registration
- Airframe: [Alisport SILENT 2 ELECTRO](https://openairdocs.org/model/alisport-silent-2-electro) (registry code 05632RZ, 1 seats)
- Engine: [Amateur-built UNKNOWN ENG](https://openairdocs.org/engine/amateur-built-unknown-eng) (registry code 99999)
- Serial number: 2077
- Year built: 2016
- Type: Glider
- Engine type: Electric
- Airworthiness: Experimental, racing, exhibition
- Airworthiness date: August 19, 2016
- Certificate issued: September 23, 2023
- Expires: September 30, 2030
- Mode S code: A3720B
- Registered owner: [Sorenson Kenneth G](https://openairdocs.org/faa-owner/SORENSON%20KENNETH%20G)
- Location: [Waller, TX](https://openairdocs.org/faa-place/TX/Waller)
- Owner type: Individual
- Owner's area on the map: 30.0812° N, 95.9269° W: Placed by OpenAirDocs at the center of ZIP code 77484, within about 7 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=321AD
- Page: https://openairdocs.org/aircraft/N321AD

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 (Alisport SILENT 2 ELECTRO)

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 CEN23LA405](https://openairdocs.org/ntsb/CEN23LA405), Sep 7, 2023: Alisport Silent 2 Electro (N321AD), Giddings, TX, substantial damage. Probable cause: The glider’s encounter with flutter during cruise flight that resulted in structural damage to the fuselage.

## 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 20230907012119A](https://openairdocs.org/incident/20230907012119A), Sep 7, 2023: Alisport Srl SILENT 2 ELECTRO (N321AD), Giddings, TX, Substantial damage. While in level flight at approximately 4000 feet AGL, the glider began a serious of strong to severe lateral oscillations lasting for 10 to 15 seconds. The…

## Reports on N321AD not matched to an aircraft (1)

They name N321AD, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft.

- [Incident 19850802060739I](https://openairdocs.org/incident/19850802060739I), Aug 2, 1985: Robsin R22 (N321AD), Norwood, MA. Landed without communicating with ATC. Departed on flight path contrary to ATC instructions.

## Service difficulty reports (1)

As reported by operators and repair stations. Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.

- [SDR 2023FA0000531](https://openairdocs.org/sdr/2023FA0000531), Sep 7, 2023: UNKNOWN. UNKNOWN. WHILE IN LEVEL FLIGHT AT APPROXIMATELY 80 KTS THE GLIDER BEGAN A VIOLENT LATERAL OSCILLATION LASTING FOR ABOUT 10 - 15 SECONDS (BELIEVED TO BE AERODYNAMIC FLUTT

## STCs that may be installed (OpenAirDocs)

None matched to this aircraft's models.

## Earlier aircraft with N321AD

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N321AD before.

- [Cancelled 2009-12-01](https://openairdocs.org/deregistered/N321AD-2009-12-01): Beech 77, S/N WA-108, built 1980. Exported to Canada. Owner: [Townsend Michael S DBA](https://openairdocs.org/faa-owner/TOWNSEND%20MICHAEL%20S%20DBA), [Albany, NY](https://openairdocs.org/faa-place/NY/Albany)

## Related

- Other Alisport SILENT 2 ELECTRO aircraft: https://openairdocs.org/model/alisport-silent-2-electro/aircraft.md
- The Amateur-built UNKNOWN ENG engine: https://openairdocs.org/engine/amateur-built-unknown-eng.md

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