911-7609 - Workers in the offshore industry practise helicopter ditching evacuation as part of an industry training course, Billingham, Teesside, England, United Kingdom, Europe
911-7712 - Workers in the offshore industry practise helicopter ditching evacuation as part of an industry training course, Billingham, Teesside, England, United Kingdom, Europe
911-7710 - Workers in the offshore industry practise helicopter ditching evacuation as part of an industry training course, Billingham, Teesside, England, United Kingdom, Europe