As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER GATE ARRIVAL THE CREW WAS UNABLE TO OPEN THE L1 DOOR. MAINTENANCE FOUND BROKEN BEARINGS IN THE SLIDE ARMING MECHANISM AFT LINKAGE. REMOVED AND REPLACED BEARINGS AND ADJUSTMENT LINKAGE IAW AMM 52-11-20. OPERATIONAL AND LEAK CHECKS NORMAL. GROUNDED.