It was said that the reason for delay of the Gorshkov frigate is due to the anti air system Redut which is a navilized variant of S-400. According to the representative that complained about it, they stated the condition of the plant that produces it - Fakel. Now, Fakel is the one who has made the S-400 which is a highly regarded, successful system feared by most and tested thoroughly with high success. The plants condition though was apparently quite sad that majority of equipment is old. Now I am not sure what exactly they make. Who makes the radar and fire control systems for Poliment Redut system in Almaz Antey? Because if all other missile types of failed, it leads me to believe it isn't the missiles themselves (so in this case, not Fakel) but another division who is making the fire control systems and the radar. Now I understand it is all due to using new technology (AESA radars for the ship as example) but what is the real cause to the failures?
Wish TR-1 was still here, he may have had answers.