2001 Japan Airlines mid-air incident
…pass each other while 2,000 feet (610 m) apart. The mid-air incident occurred as flight attendants began to serve drinks onboard Flight 907. JA8904's traffic collision avoidance system (TCAS) sounded 20 minutes after its departure as the jet climbed towards 39,000 feet (11,887 m). The DC-10, JA8546, cruised at 37,000 feet (11,278 m…