As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NOSE GEAR COLLAPSE DURING ROLLOUT AFTER BRAKE APPLICATION. PILOT HAD 3 GREEN LIGHTS. HOOK PORTION OF DOWNLOCK PN 86275-03 FOUND CRACKED, BROKEN OFF. FOUND BROKEN NAS 464P4-27 ALSO FOUND FAILED. BOLT FRACTURED MID SHANK. HEAD PORTION OF BOLT NEVER FOUND. REMAINDER OF BOLT WITH NUT AND COTTER PIN INSTALLED FOUND STILL INSTALLED IN DRAGLINK ASSY. UNCLEAR AS TO WHAT FAILED FIRST. DOWNLOCK TT 8258 HRS, BOLT TT UNKNOWN.