There is a video here from inside the plane where the two bounces can be identified. By frame counting the two videos, it's clear the time between first and second bounce is 2.0sec. Between second bounce and the "landing" is 3.5sec. So there are two bounces, where only second one is seen on the outside video. I don't count the "landing" as a bounce. This makes for a pretty accurate estimate on the runway (image below).
In comparison, the
Tokyo Fedex MD11 had a first and second bounce of 2.0sec and 5.0sec.
