Abstract: An aircraft control surface failsafe hinge configuration is disclosed. The arrangement comprises a drop link configuration which is adapted to attach a control surface to an aircraft structure where the drop link additionally incorporates a failsafe hinge means which provides a backup hinge connection between the control surface and the aircraft structure to which it is attached. The improved failsafe hinge construction may be applied to any aircraft control surface such as an aileron, elevator, vertical tail plane and the like.

Abstract: A bearing failure indication arrangement which has a bearing with an inner and outer races, a first part arranged to be attached in fixed relation to either the bearing inner race or bearing outer race, a failure indicator arranged in fixed relation to both the first part and either the bearing inner race or the bearing outer race, the failure indicator constructed so that if relative movement occurs between the first part and the bearing race to which it is attached, the failure indicator responds to the relative movement thereby indicating failure of the bearing.

Abstract: An aircraft control surface failsafe hinge configuration is disclosed. The arrangement comprises a drop link configuration which is adapted to attach a control surface to an aircraft structure where the drop link additionally incorporates a failsafe hinge means which provides a backup hinge connection between the control surface and the aircraft structure to which it is attached. The improved failsafe hinge construction may be applied to any aircraft control surface such as an aileron, elevator, vertical tail plane and the like.

Abstract: The invention provides a bearing failure indication arrangement comprising a bearing having an inner and outer race, a first part arranged to be attached in fixed relation to either the bearing inner race or bearing outer race, a failure indicator arranged in fixed relation to both the first part and either the bearing inner race or the bearing outer race, the failure indicator constructed so that if relative movement occurs between the first part and the bearing race to which it is attached, the failure indicator responds to the relative movement thereby indicating failure of the bearing. The failure indicator is particularly adapted for use in aircraft structures and indicates full of partial bearing failure by means of movement and/or deformation of the indicator.