UAUS31 KWBC 181051
ARP UAL872 4600N 15000W 1030 F334 270/070KT TB CONT LGT CHOP IC RM
    B77W OV 46N50 RIDES GOOD FL310-20CONT LT CHOP FL330-340=
ARP UAL872 4600N 15000W 1030 F320 270/070KT TB SMTH IC RM B77W OV
    46N50 RIDES GOOD FL310-20CONT LT CHOP FL330-340=