# N56PK: not currently registered

- Registered now: No (not in the FAA registry file). The mark may be reserved or free to assign
- Earlier aircraft: 1
- Last cancelled: January 10, 2018
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=56PK
- Page: https://openairdocs.org/aircraft/N56PK

## Aircraft that carried N56PK

- [Cancelled 2018-01-10](https://openairdocs.org/deregistered/N56PK-2018-01-10): Keesler Patrick E W8 TAILWIND, S/N 1953, built 2010. Registration expired, pending cancellation. Owner: [Keesler Patrick E](https://openairdocs.org/faa-owner/KEESLER%20PATRICK%20E), [Neenah, WI](https://openairdocs.org/faa-place/WI/Neenah)

## NTSB investigations on N56PK (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 CEN11LA429](https://openairdocs.org/ntsb/CEN11LA429), Jun 29, 2011: Keesler W8 Tailwind (N56PK), Oshkosh, WI, substantial damage. Probable cause: The loss of engine power during initial climb for undetermined reasons.

## FAA accident and incident reports on N56PK (2)

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 20110629011639A](https://openairdocs.org/incident/20110629011639A), Jun 29, 2011: Keesler Patrick E W8 TAILWIND (N56PK), Oshkosh, WI, Substantial damage. On June 29, 2011 at approximately 10:00 am pilot [privacy data omitted] was cleared to depart runway 9 at Wittman Regional Airport for flight testing. A few…
- [Incident 20100706036509I](https://openairdocs.org/incident/20100706036509I), Jul 6, 2010: Keesler Pat W8 TAILWIND (N56PK), Oshkosh, WI, Minor damage. Aircraft N56PK departed osh for test flight. Pilot reported to osh tower that he lost engine power at 0026Z. Alert ii issued by osh tower, aircraft was able to…

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.