As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: REPEAT GRIPE. THIRD TIME TODAY FOR THIS AIRCRAFT WITH CABIN DOOR ISSUE. CABIN DOOR UNABLE TO CLOSE AND VERY DIFFICULT TO OPEN. REMOVED BROKEN TENSION SPRING ON L1 DOOR. PER BOEING 737-NG AMM 52-11-41, INSTALLED NEW FORWARD ENTRY DOOR FUSELAGE TORQUE TUBE TENSION ASSIST SPRINGS. PER AMM 52-11-41.