As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING R1 DOOR EMERGENCY LIGHT MTC FOUND ALMOST ALL OF INTERIOR EMERGENCY LIGHTS DYING OUT IN LESS THAN 1 MIN OF USE. REPLACED ALL 9 AIRCRAFT EMERGENCY LIGHT BATTERY PACKS PER B757 MM 33-51 LIGHTS NOW OPERATE NORMAL. (8027442) AIRCRAFT WAS GROUNDED