AAIB investigation to Avy Aera 1.5, (UAS registration n/a)

Lift propeller bolt failure and blade loss, Arran War Memorial Hospital, Lamlash, Isle of Arran, 6 May 2022.

• From: Air Accidents Investigation Branch
• Published: 8 December 2022

• Category: Unmanned Aircraft Systems (UAS)
• Report type: Bulletin - Correspondence investigation
• Date of occurrence: 6 May 2022
• Aircraft type: Avy Aera 1.5
• Location: Lamlash, Isle of Arran
• Registration: N/A

Summary:

The UA was hovering at between 50 m to 65 m agl during a demonstration flight, when a rhythmic, lower than normal sound was heard emanating from the UAS. It then dipped and spiralled downwards during which control could not be re-established. The UA hit the ground and was severely damaged. A fatigue failure of a blade attachment bolt caused one of the lift propeller blades to detach in flight.

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Avy Aera 1.5, (UAS registration N/A) 12-22

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Published 8 December 2022