Uberlingen: Bashkirian 2937 and DHL 611
Printed page 5. PDF page 7.
during times of low traffic flow at night only one controller worked and the other one retired to rest. 1 All times given are in UTC unless indicated differently AX001-1-2/02 5Open final report at PDF page 7BFU AX001-1-2/02: collision near Ueberlingen