Tustin, CA - As the structure burns, sections of the hangar will continue to collapse. OCFA crews will remain on scene throughout the day to monitor the situation and assist in the investigation into the origin and cause. OCFA is utilizing all of our available assets including dozers and our drone program to gather information and put out the fire. ocfireauthority #OCFA #orangecountyfireauthority #firefighter #ocfirefighter #firedepartment #firefighters #paramedics #orangecounty