647/648 few location bump stop fail. to ~~~~~ 647/648 few location bump stop fail. to rectify 3647 bogie 1, 1647 bogie 2, 2647 bgoie 1 & 2, 2648 bogie 1 & 2, 1648 bogie 1 & 2, 3648 bogie 1 & 2. Not required to check during 3WKLY.