Y10220 SWITCHED ARMN112410 CAR TO TRACK P14. ON IMPACT WITH OTHER CARS IN TRACK, THE LADING SHIFTED, DISLODGING PLUG DOOR BETWEEN P14 AND P15. Y10220 CONTINUED SWITCHING CARS TO P15. DURING SWITCHING INTO P15, 8 CARS WERE DAMAGED ON P15 AFTER BEING STRUCK WITH CAR DOOR FROM ARMN112410 ON TRACK P14.