As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE PERFORMING T/C 78233001 FOUND MID CABIN EMERGENCY ISLE C7 INOP. GROUNDED - YES. REPLACED EMERGENCY LIGHT POWER SUPPLY BATTERY PACK AT C7 REF BOEING AMM TASK 33-51-06-0960-805. ASSY M1695. OP TEST GOOD. EMERGENCY LIGHTS OPERATE AS REQUIRED. NO FURTHER DEFECTS.