Originally Posted by
SASless
.the first being which Collective control rod is the one that was damaged and rendered useless by the arcing?
The lateral collective tube C3 which is overhead with inboard side connected to mixing unit and outboard side connected to the vertical C2 in L/H side shell.
Were any Rod End bearings spot welded that would have caused the Collective Jamming?
Per the report no. However, the tube failed longitudinally which allowed the tube to mechanically twist along that axis. So instead of the pilot pulling pitch and the C3 rotating as a complete tube, only the C2 side rotated and the mixing unit side did not rotate or was of limited rotation. While composites have great fatigue resistance, the more structural failure modes I see, the more I'd rather have a good ol'fashioned metal alloy part instead.