I wonder how freely BA, LH and others report compared to AF
Don't know about others but back in the 1970s BAW was the first airline to institute voluntary incident reporting and use of FDR data for incidents rather than just accidents. After a few hiccups with over-zealous managers miss-using it, one of which nearly torpedoed the entire US ASRS scheme that was just about to start, it has been pretty comprehensive and effective. Not much happens that doesn't get known about and checked out.