Vane actuating apparatus for adjusting the angle of incidence of a set of variable angle vanes in a gas turbine engine comprises a plurality of vane actuator levers attached at one end to a respective vane and at the other end to an actuation arrangement for moving the vanes in unison. Each lever has an interlocking connection arrangement for pivotally connecting the lever with respect to its respective vane in such a way that the lever is capable of being attached and detached from the vane at a first angular position, and retained in interlocking engagement for pivotal movement at a second angular position or range of positions.