Originally Posted by
lowfat
The new Hums Bearing toolbar is Much improved and also more sensitive than previously set.
The fact that Sikorsky has produced this in days rather than months is to be applauded.
As to a cause some suspicion has been aired on the previous practice of inhibiting tail gearboxes by filing to the top with gear oil suspiciously recently withdrawn.
I wonder if the suspect shafts belong to reactivated helicopters?
Was the oil operating/service oil?