The Wessex mk2 I have were put through a very intense testing program by GKN Aerospace here in New Zealand with the approval from NZCAA. We lifted some 3000 tonnes of logs and GKN requilified the Wessex mk 2 for HEAVY REPETITIVE lifting. A completely new maintenance program was approved by NZCAA for logging. The Wessex is safe for logging.
https://youtu.be/MxXKIc3NMyU Or go to YouTube and type in Westland wessex mk2