Thank you, but I really can't find that container. That's strange, but maybe I just don't see it an that chaos that is my utility page^^ Anyway, regarding the decoupler... Yeah, I wanted to know how often they would fail. That are 95 TR-18A Stack Decouplers. Kerbal Mechanics version is 0.4.1, just to make sure that I used the actual one. After some right-click -> Decouple madness I can say that 50 of those decouplers failed, 45 worked, so let's say roughly 50% failed, which is pretty much the failure rate it shows. But that's a bit to much, at that point I would change my supplier, especially since that is the standard quality ^^ With every second decoupler failing, chances are that you encounter problems with the decouplers at least once, but probably even more often, per mission. That is especially annoying with a part that: 1. Can't be repaired (single use item) 2. Is absolutely vital not only for the rocket staging, but also for the escape system some people build (or at least I build) That's why I feel like encountering those damn decouplers way to often *lol*