Thanks for finding that Moggy. Now hopefully this one can be put to bed. I do really get riled by these armchair experts that think the world is about to end when 2 aircraft are within 2 degrees of latitude of each other.
LBA – There probably wouldn’t have been anymore than a solid white diamond to indicate the other aircraft. Had there been an excessive rate of descent (or conversely climb) a TA may have been activated. This would be accompanied by the aural “Traffic, traffic” and the display would show a solid yellow circle. This only considered a caution. A TA would be classed as a warning.