As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DISCHARGED BATTERY PACK EMERGENCY LIGHT BTW STA 727C TO STA 727D LH SIDE AT PASSENGER CABIN (1 EA). REPLACED EMERGENCY LIGHT POWER SUPPLY BATTERY PACK (M1670) BTW STA 727C TO STA 727D LH SIDE AT PASSENGER CABIN IAW AMM 33-51-06-960-805. TEST IS OK.