How is such a question relevant?
It may not be relevant to you, but those of us whose put our trust in the Chinook on a daily basis would like to know. When did we stop flying an unairworthy ac? Is it still unairworthy? Have A&AEE (RWTS) changed their views on FADEC and given it an unconditional release? Do we still get UFCMs? Does a -6 deg icing clearance make it safer than the Puma with a 0 deg?
I understand that this is an impossible question for you or anyone to answer, but confidence in the aircraft is an important factor for those who fly it. If you have the confidence to declare an aircraft unairworthy then the decision to clear it must also be taken by you.