# Accident 20110629011639A: Keesler Patrick E W8 TAILWIND, Oshkosh, WI, June 29, 2011

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: June 29, 2011, 10:03 local time
- Place: Oshkosh, WI
- Airport: Wittman Regional Airport
- Damage: Substantial damage
- Phase of flight: Takeoff: Climb Out
- Operating rules: General operating rules (Part 91)
- Location: 43.9844° N, 88.5569° W: From the FAA
- Nearby events: https://openairdocs.org/map.md?lat=43.9844&lon=-88.5569&mi=10
- Aircraft: N56PK, a cancelled registration (https://openairdocs.org/deregistered/N56PK-2018-01-10) (OpenAirDocs)
- Registry model: Keesler Patrick E W8 TAILWIND (registry code 97902PK, https://openairdocs.org/model/keesler-patrick-e-w8-tailwind) (OpenAirDocs)
- Registry engine: Continental C90-12F (registry code 17183, https://openairdocs.org/engine/continental-c90-12f) (OpenAirDocs)
- Reported make and model: KEESLER PATRICK E W8 TAILWIND
- Reported engine: CONT MOTOR C90
- People aboard: 1
- Fatal injuries: 0
- Other injuries: 0
- Pilot certificates: Private pilot
- Pilot flight hours: 283 total, 4 in this make and model
- NTSB investigation: [NTSB CEN11LA429](https://openairdocs.org/ntsb/CEN11LA429) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20110629011639A

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

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 100 FEET OFF THE GROUND THE PILOT TURNED RIGHT AND THEN EXPERIENCED A ROUGH RUNNING ENGINE AND WAS LOOSING POWER.  PILOT DECIDED TO LAND IN THE GRASS NEAR TAXI WAY JULIET AND KILO.  THE AIRCRAFT GROUND LOOPED.  AIRCRAFT OBTAINED SUBSTANTIAL DAMAGE AND PILOT RECEIVED NO INJURIES.  WEATHER WAS NOT A FACTOR IN THIS ACCIDENT.

## The NTSB's investigation of this event (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.

## Other reports on N56PK (1)

Matched to the same aircraft by N-number and date.

- [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…

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. For accidents, the NTSB's own investigation is the fuller record.

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