This worker at the Vultee-Nashville factory is shown making final adjustments in the wheel well built into the underwing of the A-31, before the installation of the landing gear and the mating of wing to fuselage in one of the numerous assembly operations required for the mass production of Vultee “Vengeance” dive bombers.
Below is a very interesting book about the A -31 Vengeance dive bomber, detailing its development, production and unsung but critical role in the Pacific Theatre during WWII.