That's sad to hear,
Safety Concerns. All I can say is that the system worked for me - several times - but that was quite a few years ago now. However, if it is not under a UK AOC, then my ideas may not be so appropriate.
From the description you offer, I find it difficult to assess whether it is an engineering or industrial matter. That's why I suggested earlier in the thread that the advice and help of a good union should be sought. In the absence of anywhere else obvious, the Technical Section of BALPA might be a good place to start.
JD