As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT EXIT EMERGENCY LIGHT JUST AFT OF THE FLAP INOP. FOUND LIGHT AFT OF THIS LIGHT ALSO INOP. RELAMPED BOTH BUT NO HELP. T-S REF WDM, RANG ALL 4 (5A) FUSES IN M738 RANG GOOD, M738 IS LOCATED AT SEAT 37ABC. BATTERY PACK M738 TO BE REPLACED IS BY STA 1349 (LEFT AIR GRILL). REPLACED BATTERY PACK, GROUND CHECK NORMAL.