# N128BD: Hanlon Robert GS-2 SPORTSMAN

- Status: Valid registration
- Airframe: [Hanlon Robert GS-2 SPORTSMAN](https://openairdocs.org/model/hanlon-robert-gs-2-sportsman) (registry code 056245R, 4 seats)
- Engine: [Amateur-built UNKNOWN ENG](https://openairdocs.org/engine/amateur-built-unknown-eng) (registry code 99999)
- Serial number: 7234
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Kit: Glasair Aviation LLC GS-2 SPORTSMAN
- Airworthiness: Experimental, amateur built
- Airworthiness date: February 27, 2008
- Certificate issued: September 13, 2021
- Expires: September 30, 2028
- Mode S code: A07187
- Registered owner: [Wiederspahn David H](https://openairdocs.org/faa-owner/WIEDERSPAHN%20DAVID%20H)
- Location: [Cambridge, MA](https://openairdocs.org/faa-place/MA/Cambridge)
- Owner type: Individual
- Owner's area on the map: 42.3624° N, 71.1023° W: Placed by OpenAirDocs at the center of ZIP code 02139, 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=128BD
- Page: https://openairdocs.org/aircraft/N128BD

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 (Hanlon Robert GS-2 SPORTSMAN)

None in force.

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

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N128BD.

## 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 20110903018459I](https://openairdocs.org/incident/20110903018459I), Sep 3, 2011: Hanlon Robert GS-2 SPORTSMAN (N128BD), Fitchburg, MA, Minor damage. As stated by the pilot, he and mr. [privacy data omitted] Departed Fitchburg, MA (fit) for turner falls, MA (0B5). Landing 0B5 runway 34, the approach was a…

## 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 Hanlon Robert GS-2 SPORTSMAN aircraft: https://openairdocs.org/model/hanlon-robert-gs-2-sportsman/aircraft.md
- The Amateur-built UNKNOWN ENG engine: https://openairdocs.org/engine/amateur-built-unknown-eng.md

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