As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UNABLE TO OPEN L-1 DOOR FROM INSIDE ONCE ARRIVED @ JETWAY. GROUNDED - YES. FOUND DAMAGE TO THE GUIDE ARM AND RADIUS LINK. REMOVED DAMAGED GUIDE ARM, FOUND GUIDE ARM RADIUS LINK PIN BOLT SHEARED OFF. INSTALLED NEW GUIDE ARM & RADIUS LINKS & PIN. ACCOMPLISHED L-1 FORWARD ENTRY DOOR SYSTEM TEST & TESTED GOOD. REF B737-900 AMM 52-1-00-700-804.