Brookmans Park
"Large jets do not "fly above the runway and make a last minute decision"
True, but that's what the PIC of JAK did. He received GA from ATC the moment he saw the approach lights and he just landed. He was even praised by ATC commander. What I am just saying is that PIC of TU could be tempted to "just level at 100m" and the chart of N1 could be a proof of that... and if he did not relay on the radio altitude, he would be fine ...