As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON TAKEOFF ROLL, L-1 DOOR LIGHT ILLUMINATED AND F/A NOTICED DOOR HANDLE MOVED AND GAP WAS SEEN UNDER DOOR. REPLACED GUIDE ARMS, FOUND DOOR LATCH ROLLER OVER CENTER RIGGING OUT OF ADJUSTMENT. ADJUSTED SAME AND RIGGED DOOR. OP CHECKS GOOD.