The ALH has a basic problem with vibration and control forces. The ARIS (Anti Resonance Isolation System) that was designed to isolate MGB vibrations has not performed as well as it was supposed to. HAL has therefore installed active vibration control (AVC) systems in the helicopter to increase comfort by damping vibrations in localised areas like the pilot seat and passenger locations. MGB vibrations continued to be higher than permitted, so destructive failures began to show up at various weak points on the entire transmission and control system over the years. After each crash or accident that revealed control rods had broken, the OEM continued replacing these with stronger ones. The basic problem, viz. the MGB vibration was still not adequately addressed. The last iteration was the modification for changeover to stainless steel rods after the Navy IN 709 ditching. Due to all these modifications the proverbial weak link kept shifting upwards in the control chain, and now the swashplate has become the latest victim. The next stage will probably be to modify the swashplate… and so on. How long can this continue without addressing the basic problems in the design?