Yeps, it's a bug. You discovered another Bermuda triangle :lol:
FS acars systems send coordinates in degrees/minutes/seconds but google maps needs decimal degrees, so I convert them using a php class (which also serves for great circle calculations, distance calculation etc.). Somewhere in these functions is a bug that gives negative values instead of positive and vice versa, only at certain positions. I already included a hotfix, and the errors show up less often than before. But especially in the northern New Zealand area it still happens. I need some time to take a closer look at what happens there.
