What was found
IN FLIGHT AN ELECTRICAL ODOR WAS EVIDENT AROUND SEAT 37 A/B AND SEAT 38 A/B. NO SMOKE WAS VISIBLE NO CAUSTIC BURNING EYES OR NOSE. ENTERTAINMENT SYS/CABIN LIGHTS/GALLEYS WERE DEPOWERED. ODOR WAS NO LONGER EVIDENT. VISUAL INSP OF ALL AUDIO/VIDEO POWER BOXES FROM SEAT 30 A/B--40 A/B GOOD FUNCTIONAL OPERATION 30 A/B-40 A/B NORMAL. REMOVED AND REPLACED AVU POWER BOX AT SEAT 37 A/B AND 38 A/B AS A PRECAUTIONARY MEASURE ONLY. RAN SYS FOR 5 HOURS WITH NO EVIDANCE OF SMOKE OR FUMES.