I think the key statement is this ...
"The nature of the catastrophic failure of the LN-OJF main rotor system indicates that the current means to detect a failure in advance are not effective."
It's important that AH respond to this as quickly as possible so as we can agree on the initial cause. Is this a simple repeat of REDL or did the Airbus scenario occur and the resulting load trigger the secondary fatigue failure of the weakened planetary stage .
What is now undeniable (surely) is that the industry has a real problem with MGBs in mid range shuttles. 3 total loss fatal accidents since 2009 in three types (S92, L2 and 225). This is not just an issue with Pumas there will need to be a major reappraisal of the design of these units to try and get these accident rates down.
Last edited by birmingham; 2nd Jun 2016 at 08:12.