NATIONAL ADVISORY COMMlTTEE FOR AERONAUTICS

Information relating to aircraft fires has been reviewed to determine what new or further reeearoh might lead to a substantial, reductim of the aircraft fire hazard in flight and following oraahes. An examination of fuels, lubricants, and hydraulic fluid8 ae inflammable liquid8 is presented herein, together eth possible sources of ignition under the general categories of hot surfaoes, electric sparks and arca, flames, and hot gases. The literature on these topics ie exteneive and a number of organizaticxm are currently engaged in research and development activitiee on the air-oraft fire problem. c Y A review of the etatistics on aimraft accidents showa that about 15 percent of all air-carrier accidents are crashes followed by fire and about 5 peroent of all aocidents are caused by fire i