# N12JK: Knoll John B-80, registration cancelled 2013-09-13

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: September 13, 2013
- Status when cancelled: Registration expired, pending cancellation
- Airframe: [Knoll John B-80](https://openairdocs.org/model/knoll-john-b-80) (registry code 130012V)
- Engine: [Mcculloch 4318A&E/0-100](https://openairdocs.org/engine/mcculloch-4318a-e-0-100) (registry code 43101)
- Serial number: 001
- Type of aircraft: Rotorcraft
- Engine type: Reciprocating
- Airworthiness: Experimental, amateur built
- Airworthiness date: December 3, 1986
- Certificate issued: November 28, 1986
- Last registry action: October 21, 2008
- Mode S code: A0522B
- Owner when cancelled: [Knoll John](https://openairdocs.org/faa-owner/KNOLL%20JOHN)
- Location: [Emmaus, PA](https://openairdocs.org/faa-place/PA/Emmaus)
- Physical address: [Custer, SD](https://openairdocs.org/faa-place/SD/Custer)
- Owner type: Individual
- Owner's area on the map: 40.5222° N, 75.4903° W: Placed by OpenAirDocs at the center of ZIP code 18049, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N12JK
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=12JK
- Page: https://openairdocs.org/deregistered/N12JK-2013-09-13

From the FAA registry file of November 5, 2026, cancelled registrations. Owners' street addresses are left out. The Mode S code belongs to the N-number, not the airframe.

ADs and bulletins for the Knoll John B-80: https://openairdocs.org/model/knoll-john-b-80.md

## 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 BFO95LA056](https://openairdocs.org/ntsb/BFO95LA056), May 31, 1995: Knoll-Bensen B-80 (N12JK), Germansville, PA, substantial damage. Probable cause: the private pilot's misjudged flare, which resulted in a hard landing.

## 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 19950531017739A](https://openairdocs.org/incident/19950531017739A), May 31, 1995: Amtr B8M (N12JK), Germansville, PA, Substantial damage. Flared high on landing. Dropped to runway. Rotors struck tail and ground. Gyroplane then flipped on its side.

## Other aircraft with N12JK

- [Registered now](https://openairdocs.org/aircraft/N12JK): Cessna 560XL, S/N 560-5618, built 2006

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