Originally Posted by
corporate-wage-slave
It tends to be shown on Mixed Fleet routes since it is on their checklist. It's not entirely accurate, particularly for domestics inbound, but the good people of Manchester and Aberdeen are given a quick, well not so quick actually, dose of it in the hold. T3 has its own version, incidentally, different to T5.
Interesting, thanks. I've been flying a lot of BSL-LHR, which is MF, but ZRH/GVA-LHR is not I believe. All T5 obviously.