As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
L2 MAIN CABIN DOOR WOULD NOT CLOSE AND LOCK FROM INSIDE OR OUTSIDE CABIN. FOUND GUIDE ARM SERATED PLATE LOOSE AND SHIFTED ONE SERATION. SECURED PLATE AND ADJUSTED GUIDE ARM. DOOR OPS NORMAL. REPLACED FWD UPPER ROLLER FOR WEAR. ALL PER B757 AMM 52-11. (8654402) AIRCRAFT WAS GROUNDED