Aviation safety investigations & reports

Accredited Representative to the NTSB - Engine power loss and collision with terrain involving a Arion Lightning LS-1, registered N6688S, at Johnson County Airport, Tennessee, United States on 7 April 2022

Investigation number:
Status: Active
Investigation in progress


On 7 April 2022, at 1630 Universal Standard Time, an experimental Arion Lightning LS-1, registered N6688S, was departing Johnson County Airport, Mountain City, Tennessee, United States. During the initial climb the aircraft had a loss of engine power and had an impact with airport property. The pilot was seriously injured.

The US National Transportation Safety Board (NTSB) is investigating this occurrence. As Australia was the State of Manufacture of the engine, the NTSB requested appointment of an Accredited Representative from the ATSB.

To facilitate this request, the ATSB as the Accredited Representative has initiated an external investigation under the provisions of the Transport Safety Investigation Act 200

General details
Date: 07 April 2022   Investigation status: Active  
Time: 1630 UST    
State: International    
Release date: 02 May 2022    
Report status: Pending    
Last update 04 May 2022