What was found
THE EMERGENCY LIGHT IN LAV, ON FLOOR, RT SIDE (TOW KICK LIGHT) DID NOT PASS PREFLIGHT TEST. CHARGED EMERGENCY LIGHTS IAW QRH FOR 30 MINS. LIGHT WAS STILL INOPERATIVE. IT IS SUSPECTED THAT THE BULB MAY BE OUT OR THE WIRING NEEDS TO BE LOOKED AT. THE LIGHT DOES NOT ILLUMINATE WHEN CABIN LIGHTS ARE ON NORMALLY. ALL OTHER EMER LIGHTS WORK. POWERED ACFT ON APU. PERFORMED INTERIOR LIGHTING CHKS AND CONFIRMED CREW DISCREPANCY. FOUND THE TOE KICK LIGHT PLUG DISCONNECTED. RECONNECTED PLUG PERFORMED NORMAL LIGHTING & EMERGENCY LIGHTING OPS CHKD, NO DEFECTS NOTED. WORK IS DONE IAW IMM 24-50-08-01.