What was found
STRONG ODOR REPORTED VICINITY AT SEAT 36B AS PREVIOUSLY REPORTED. F/A REPORTS ELECTRICAL ODOR IN ADJACENT AREA. BOTH RECIRC FANS AND ENTERTAINMENT SYSTEM TURNED OFF. ODOR DISSIPATED WITH RECIRCS OFF. LONG HISTORY OF PROBLEM. INSPECT CABIN OVERHEAD AT SEAT 35-36 ABC. NO ODOR NOTED. RAN ENTERTAINMENT SYSTEM TURNED RECIRC FANS/GASPER FAN AND ALL LIGHTS FOR 1 HR. NO ODOR NOTED. AFTER OPERATING ENTERTAINMENT SYSTEM FOR 4 HRS FOUND THE AVU AT SEAT 35 CDE VERY HOT AND THE COOLING FANS INOP INSIDE THE AVUS. REMOVED AND REPLACED AVUS.