What was found
EMERGENCY LIGHTS INOP AT LT LAV LOWER LIGHT, AT SEAT 2 C AT BOTTOM OF SEAT, VENTRAL STAIRS AND ALL EXTERIOR LIGHTS OVERWING. REPLACED NECESSARY BATTERY PACKS FOR EMERGENCY LIGHTING TO ENSURE PROPER OPS PER MM 33-50-01. ALL EMERGENCY LIGHTS EXCEPT THE LEFT OVERWING ARE FUNCTIONAL LEFT WING EGRESS LIGHTS INOP, REFER TO NON ROUTINE.