Too many accidents despite multiple design changes and implementation of new maintenance procedures. The fact that only this specific engine type is regularly experiencing this type of incident indicates, very clearly, that this cowl latching design can be improved e.g. cowl clearly showing as opened when unlatched. It is clearly a design fault which must be fixed, sensors should also be added to warn flight deck if unlatched, very simple and not expensive at all. End of story. It is a serious design weakness and we cannot blame engineers and pilots (humans) for such a silly design mistake. No other engine has got this problem, I mean cowl showing closed, locked even if unlatched
