# N11DP: 1972 Polen SPECIAL II

- Status: Valid registration
- Airframe: [Polen SPECIAL II](https://openairdocs.org/model/polen-special-ii) (registry code 05611G7, 1 seats)
- Engine: [Lycoming I0360 SER A&C](https://openairdocs.org/engine/lycoming-i0360-ser-a-c) (registry code 41511)
- Serial number: 2
- Year built: 1972
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Experimental, amateur built
- Airworthiness date: July 20, 1999
- Certificate issued: February 3, 2016
- Expires: February 28, 2029
- Mode S code: A02A33
- Registered owner: [Dennis Polen Educational Foundation](https://openairdocs.org/faa-owner/DENNIS%20POLEN%20EDUCATIONAL%20FOUNDATION)
- Location: [Granbury, TX](https://openairdocs.org/faa-place/TX/Granbury)
- Owner type: Corporation
- Owner's area on the map: 32.4616° N, 97.7034° W: Placed by OpenAirDocs at the center of ZIP code 76049, within about 6 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=11DP
- Page: https://openairdocs.org/aircraft/N11DP

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 (Polen SPECIAL II)

None in force.

### Matched by engine (Lycoming I0360 SER A&C)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N11DP.

## 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 20001013031039I](https://openairdocs.org/incident/20001013031039I), Oct 13, 2000: Amtr SPECIALII (N11DP), Phoenix, AZ, Minor damage. (-23)The pilot attempted to extend the landing gear during an airshow at iwa. The only gear to extend and lock was the tail wheel. The pilot departed the…

## 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 Polen SPECIAL II aircraft: https://openairdocs.org/model/polen-special-ii/aircraft.md
- The Lycoming I0360 SER A&C engine: https://openairdocs.org/engine/lycoming-i0360-ser-a-c.md

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