Trailing edge assemblies, couplers and methods for deploying a trailing edge flap of an aircraft wing are disclosed. An exemplary method disclosed herein comprises guiding an aft portion of the trailing edge flap (28) along an elongated track member (36C) as the trailing edge flap (28) moves toward the deployed position; guiding a forward portion of the trailing edge flap (28) along the elongated track member (36C) as the trailing edge flap (28) moves toward the deployed position; and accommodating transverse movement of the forward portion of the trailing edge flap (28) relative to the elongated track member (36C).