ON JULY 27, WE WERE CAMPING AT KOA. WHILE SETTING UP IN A CAMPSITE, I HAD OPENED RIGHT SIDE "BASEMENT" HATCH WHICH IS 53"X43" WITH HINGES ALONG THE TOP, WHEN OPEN THE HATCH OR DOOR IS PUSHED UP ALONG THE SIDE THE UNIT AND HELD BY TWO MAGNETS. I FELT IT CONNECT AND LET GO, AND TURNED AND BENT WHILE REACHING IN FOR THE FRONT DOOR MAT, WHICH WAS NEXT TO THE OPEN DOOR, AS I WAS COMING OUT WITH THE MAT THE DOOR, CAME LOOSE AND CAME DOWN ON THE TOP OF MY HEAD. OTHER THAN THE PAIN OF THE BLOW I HAD NO OTHER OVERT SYMPTOMS, THERE WERE NOT EXTERNAL WOUNDS. WHAT I DIDN'T KNOW A THE TIME WAS THAT THE BLOW HAD STARTED A SLOW BRAIN BLEED. I DID FEEL HEADACHES, BUT THEY WERE ASSOCIATED WITH POSSIBLE BUSING TO THE SCALP, ULTIMATELY WHEN I TOOK SOME MOTRIN FOR ANOTHER PAIN, THAT THIN THE BLOOD ENOUGH TO CAUSE THE BLEEDING TO INCREASE AND I WAS LATER DIAGNOSED WITH A SUBDURAL HEMATOMA, THAT REQUIRED EMERGENCY SURGERY. *DT *TR .*BF *JB THE CONSUMER STATED THAT THERE ISN'T A SECOND LOCKING SYSTEM ON THE DOOR AND CURRENTLY THERE ARE TWO MAGNETS ATTACHED PER DOOR. *AS