Summary: Recorded on the anniversary of the world's worst air accident. A enormous loss of life that highlights the vital importance of standard radio procedures and the pressures of command. A word that still puts an icy hand around my heart when I hear it... Tenerife.<br> <br> The KLM 747.<br> <br> <br> <br> The Pan Am 747.<br> <br> <br> <br> Images under Creative Commons licence with thanks to Dutch National Archives, clipperarctic and Michel Gilliand.