it wants to know whatwall the wall of the plane to buckle during take off. sky 7 hd was overhead when this american airlines boeing 7 57 was towed to a maintenance hangar at sfo. after making an emergency landing. flight james wilson will never forget. >> all of a sudden the loud pop pop pop pop pop really loud and ripping sound. >>reporter: wilson heard the sound just seconds after take off. and thought the plane was breaking in two. he shot this picture after part of the cabin wall on the side and ceiling split apart interrow 14 and 15. you can even see exposed insulation near the window. it was terrifying. we didn't know what was going on. we were all shouting for the flight crew. come look. the walls are caving in. >>reporter: flight attendant look at the buckle wall and ask passengers if they could see crack in the plane. >> they kept asking the gal in front of me look in there do you see daylight. >>reporter: after 45 minutes the captain declared an emergency and told passengers he was returning to san francisco. >> i was scared. i really was. tell was