Of course I am certain nobody has done this, or landed with the flap load relief operating. These things never happen to us, only others far far away.
Landed with the flap load relief operating? Mucked around with flap below 500 feet or on the runway? Geez no wonder you guys used to stack em more often in the old days. Never ever seen it or heard of it happening in the decade or so I've been with airlines. We would have gone around at 500ft if we were at the load relief speed. Things change a bit over the years by the looks.