SAS: in reading the WSJ article ( and the other stories I’ve seen to date ), I haven’t seen a statement as to how many hours were on the clutches in the Japan fatal.
Not being critical of the folks at Bell/Boeing working on this issue. It is very possible the condition of the crash damaged components has been such that determination of the failure mode is anything but clear. Or something similar. Maybe one or two key pieces have not been found. Whatever it is, it will be very frustrating to the group working the problem. Been involved in one of those….that took 6 months. Pretty sure it had a longevity effect on the good man in charge of that effort.