# Accident 20160803013109A: Sonex Limited WAIEX, Fond Du Lac, WI, August 3, 2016

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: August 3, 2016, 12:15 local time
- Place: Fond Du Lac, WI
- Airport: Fond Du Lac
- Damage: Substantial damage
- Phase of flight: Takeoff: Climb Out
- Operating rules: General operating rules (Part 91)
- Location: 43.7703° N, 88.5014° W: From the FAA
- Nearby events: https://openairdocs.org/map.md?lat=43.7703&lon=-88.5014&mi=10
- Aircraft: N12YX, a cancelled registration (https://openairdocs.org/deregistered/N12YX-2018-01-09) (OpenAirDocs)
- Registry model: Sonex WAIEX (registry code 05615ME, https://openairdocs.org/model/sonex-waiex) (OpenAirDocs)
- Registry engine: Amateur-built UNKNOWN ENG (registry code 99999, https://openairdocs.org/engine/amateur-built-unknown-eng) (OpenAirDocs)
- Reported make and model: SONEX LIMITED WAIEX
- Reported engine: AMA/EXPR AEROCONVERSIONS
- People aboard: 2
- Fatal injuries: 0
- Other injuries: 2
- Pilot certificates: Airline transport
- Pilot flight hours: 29,114 total, 35 in this make and model, 92 in the last 90 days
- NTSB investigation: [NTSB CEN16LA302](https://openairdocs.org/ntsb/CEN16LA302) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20160803013109A

## Narrative

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

ON AUGUST 3, 2016 AT 11:00A.M. A SONEX WAIEX, N12YX LEFT OSHKOSH AIRPORT WITH A FLIGHT INSTRUCTOR AND STUDENT PILOT ON BOARD FOR A TRAINING FLIGHT. APPROXIMATELY 75 MINUTES INTO THE FLIGHT, DURING A DEPARTURE FROM FOND DU LAC AIRPORT THE AIRCRAFT EXPERIENCED A LOSS OF POWER, HIT A POWER LINE AND CRASHED WHILE ATTEMPTING TO RETURN TO THE AIRPORT.  AS A RESULT OF THE CRASH THE TWO PERSONS ON BOARD WERE SERIOUSLY INJURED. THE AIRCRAFT WAS SEVERELY DAMAGED. THE FLIGHT WAS BEING OPERATED UNDER PART 91 AND VISUAL METEOROLOGICAL CONDITIONS PREVAILED AT THE TIME.

## 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 CEN16LA302](https://openairdocs.org/ntsb/CEN16LA302), Aug 3, 2016: Sonex Waiex (N12YX), Fond du Lac, WI, substantial damage. Probable cause: A partial loss of engine for reasons that could not be determined during an examination of the engine.

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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