A tray table assembly for a reclinable seat that includes a tray table support arm including a support arm guide member and a slot for receiving a seat frame guide member therein for providing vertically translation of the assembly with seat movement, a support arm guiding member defining a guiding surface and an assembly stowing detent, a tray table pivotably attached to the tray table support arm, and a mechanical stop for limiting rotating of the tray table support arm.