Accident Sonex Aircraft Sonex ZK-NAF, Monday 17 August 2020
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Date:Monday 17 August 2020
Time:c. 13:08
Type:Silhouette image of generic SONX model; specific model in this crash may look slightly different    
Sonex Aircraft Sonex
Registration: ZK-NAF
MSN: 1049
Fatalities:Fatalities: 1 / Occupants: 1
Other fatalities:0
Aircraft damage: Destroyed
Location:Otaki Airfield, Wellington -   New Zealand
Phase: Approach
Departure airport:Otaki Airfield
Destination airport:Otaki Airfield
Confidence Rating: Accident investigation report completed and information captured
At approximately 12:48 hours ZK-NAF departed Ōtaki Aerodrome on a test flight after a new propeller was fitted to the aircraft. Approximately 17 minutes after take-off and while returning to the aerodrome, the propeller detached from the aircraft.
During the approach, and shortly after crossing the runway threshold, the aircraft developed a steep descent from which it did not recover. The aircraft struck the grassed surface adjacent to the aerodrome runway and the impact forces fatally injured the pilot.
The safety investigation concluded that the accident occurred as a result of the aircraft departing controlled flight, likely during a sideslip manoeuvre close to the ground during an emergency landing.

Accident investigation:
Investigating agency: 
Report number: 
Status: Investigation completed
Duration: 1 year and 10 months
Download report: Final report

Sources: (photo)


Tauranga 26Jan2012

Revision history:

17-Aug-2020 05:32 gerard57 Added
17-Aug-2020 05:51 gerard57 Updated [Aircraft type, Source]
17-Aug-2020 06:02 gerard57 Updated [Aircraft type]
17-Aug-2020 07:02 JMW69 Updated [Aircraft type, Location, Phase, Source]
17-Aug-2020 07:02 harro Updated [Aircraft type]
17-Aug-2020 08:47 RobertMB Updated [Time, Registration, Cn, Location, Source, Narrative]
17-Aug-2020 11:14 flyernzl Updated [Photo]
23-Sep-2021 14:14 Ron Averes Updated [Location]
13-Feb-2022 04:02 Ron Averes Updated [Location]
01-Jul-2022 17:46 harro Updated [Location, Phase, Nature, Departure airport, Destination airport, Narrative, Category, Accident report]

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