Perchance a connection
If a check is being mandated by the FAA/CAA there must be a reason. Perchance they had discovered cracks in the blade grips of one or more Robbies. If there are in fact cracks being developed I would speculate that the blade grips are the final transfer point for the tendency to lead and lag with this leading and lagging being reacted by the cone hinges. The cone hinges will have an elliptical wear pattern and the loads that cause this wear pattern pass through the blade grip. IMHO
Last edited by Lu Zuckerman; 17th May 2002 at 02:26.