As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SIG EVENT - UPON LANDING IN "DEN" THE LEFT HAND MAIN LANDING GEAR COLLAPSED CAUSING SIGNIFICANT DAMAGE TO THE LEFT MAIN LANDING GEAR AND ASSOCIATED SPAR AREA. IT HAS BEEN ISOLATED AT THIS TIME TO A FAILURE OF THE UPPER DRAG BRACE "A" ARM ASSEMBLY LUGS WHICH BROKE CAUSING THE GEAR TO PARTIALLY COLLAPSE. MX REPLACED THE LT DRAG BRACE ASSY IAW TC 1900-3210.02, OPS CHECK OK.