AAIB investigation to Guimbal Cabri G2, G-PERH

Loss of control in hover, Goodwood Aerodrome, Sussex, 8 June 2018.

• From: Air Accidents Investigation Branch
• Published: 19 September 2019

• Category: General aviation - rotorcraft
• Report type: Bulletin - Field investigation
• Date of occurrence: 8 June 2018
• Aircraft type: Guimbal Cabri G2
• Location: Goodwood Aerodrome, Sussex
• Registration: G-PERH

Summary:

While conducting a Simulated Engine Failure from the Hover (SEFH) the helicopter yawed rapidly to the left. Despite the actions of the pilots the helicopter continued to yaw rapidly, and control was not recovered. The helicopter was seen to climb while spinning before descending rapidly and contacting the ground, sustaining severe damage. Both occupants suffered serious injuries.

The manufacturer has subsequently issued service letter SL 19-001, Throttle management during simulated engine failure, and SL 19-002, Controllability in yaw at low rotor speed.

Report amendment

Following a review, the report has been amended. It was republished on-line on 5 August 2021 and in the September 2021 Bulletin.

Download the amended report:

Guimbal Cabri G2, G-PERH Amended

Download original report:

Guimbal Cabri G2, G-PERH 10-19

Download glossary of abbreviations:

Glossary of abbreviations

Published 19 September 2019