The FAA says a China Airlines crew reported someone in a jet pack just before 2 p.m.
LAX radio traffic gives a better idea of how this played out:
"Flying object - was it a UAV or was it a jet pack?"
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"215 heavy there was a jetpack reported about 13 miles ahead."
The airline crew says the person in the jet pack was over the Century City area at about 6,000 feet.
Law enforcement is now investigating.
In late August, two commercial airline pilots reported seeing someone in a jet pack near planes around LAX.
That person was never located.