A trolley of those used by the hostesses, not fixed well surely, during landing phase unfastened and rolling over alongside the aisle of the passenger-cabin, devastated five people, who are lightly wounded except a 48 woman who has had a serious injury to a foot and requested the aid by the doctor. It has happened at 01:30am (local hour) of today on an Embraer E-190 airplane, AC124 flight of Air Canada,...