It is being reported on Anet that an Asiana 747 F is missing apparently on a flight from ICN to Shanghai.
The only news link so far is in Korean, which I can't read, and google translate makes a bit of a mess of it ( although the gist of it seems to tie in with what the poster said.
Has anyone else heard anything?
edited to add: there are now unconfirmed reports that wreckage and an oil slick have been sighted.
