AAIB investigation to Evolve Dynamics Sky Mantis, (UAS registration n/a) 250722

Loss of battery power in flight, St Albans, Hertfordshire, 25 July 2022.

• From: Air Accidents Investigation Branch
• Published: 12 January 2023

• Category: Unmanned Aircraft Systems (UAS)
• Report type: Bulletin - Correspondence investigation
• Date of occurrence: 25 July 2022
• Aircraft type: Evolve Dynamics Sky Mantis
• Location: St Albans, Hertfordshire
• Registration: n/a

Summary:

The unmanned aircraft fell to the ground from a height of 20 m due to a loss of electrical power. This was caused by separation of electrical connections due to thermal damage of the UA and battery connectors. Damage was also found to the batteries fitted during the three previous flights.

The manufacturer has updated the Sky Mantis Operating Manual to highlight the need to check the aircraft and battery connectors during pre-flight checks.

Download report:

Evolve Dynamics Sky Mantis, (UAS registration n/a) 01-23

Download glossary of abbreviations:

Glossary of abbreviations

Published 12 January 2023