Interesting reading . Aside from the recommandations on the Check lists. the one (4) about protecting CBs from shoes , flight bags etc, is an old story . But in the aircrfat I flew at least , CBs were push/pull type .( you pull a CB to cut it off and for those that need to be off , a removable colored plastic ring prevents them to be accidentally pushed .)
Is this not the case in Boeings 767s ? just curious.