As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHIP 6710 4L DOOR WILL NOT ARM. ARMING LEVER JAMMED. CORRECTIVE ACTION: REMOVED DOOR SLIDE COVER IAW B757 MM 52-11-02. FOUND BUSHINGS WORN ON FWD LIFTER BRACKET CAUSING GIRT BAR TO FALL OUT AND NOT BE ABLE TO ARM. REMOVED AND REPLACED WORN BUSHING. ADJUSTED GIRT BAR CRANK PUSH ROD. REF B757 CMM 52-11-16. REF B757 AMM 52-11-25-825-001. OPERATED 4L DOOR ARM. TEST GOOD.