# N3252N: Schleicher ASW-20

- Status: Valid registration
- Airframe: [Schleicher ASW-20](https://openairdocs.org/model/schleicher-asw-20) (registry code 3801506, 1 seats)
- Engine: [Amateur-built UNKNOWN ENG](https://openairdocs.org/engine/amateur-built-unknown-eng) (registry code 99999)
- Serial number: 20587
- Type: Glider
- Engine type: None
- Airworthiness: Experimental, racing, exhibition
- Airworthiness date: November 24, 1985
- Certificate issued: August 17, 2000
- Expires: April 30, 2028
- Mode S code: A3838E
- Registered owner: [Koepper Mark D](https://openairdocs.org/faa-owner/KOEPPER%20MARK%20D)
- Location: [Waltham, MA](https://openairdocs.org/faa-place/MA/Waltham)
- Owner type: Individual
- Owner's area on the map: 42.3956° N, 71.2199° W: Placed by OpenAirDocs at the center of ZIP code 02452, 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=3252N
- Page: https://openairdocs.org/aircraft/N3252N

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 (Schleicher ASW-20)

None in force.

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

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N3252N.

## 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.

- [Incident 20100403005009I](https://openairdocs.org/incident/20100403005009I), Apr 3, 2010: Schleicher ASW-20 (N3252N), Sterling, MA, Minor damage. Mr. Koepper stated that he was landing his glider at Sterling, MA (3B3). On approach for runway 16 Mr. Koepper stated he set the flaps too early and landed in…

## 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 N3252N

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N3252N before.

- [Cancelled 1953-11-20](https://openairdocs.org/deregistered/N3252N-1953-11-20): Piper J3C-65, S/N 22443. Owner: [Ohio Valley Aviation](https://openairdocs.org/faa-owner/OHIO%20VALLEY%20AVIATION), [Metropolis, IL](https://openairdocs.org/faa-place/IL/Metropolis)

## Related

- Other Schleicher ASW-20 aircraft: https://openairdocs.org/model/schleicher-asw-20/aircraft.md
- The Amateur-built UNKNOWN ENG engine: https://openairdocs.org/engine/amateur-built-unknown-eng.md

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