As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
L1 DOOR SLIDE, WHEN ARMED DOES NOT GO INTO A DESIRED DETENT, BUT INDICATED ARMED ON EICAS SCREEN, THE YELLOW BALL RISES INFLIGHT SO LESS THAN 50 PERCENT OF BALL IS VISIBLE IN WINDOW. REMOVED METAL DEBRIS FROM SLIDE AFT ATTACH FITTING ON FLOOR.