What was found
AFTER TAKE OFF, A BURNING WIRE ODOR AT ROW 4 IN B/C THROUGH FLIGHT DECK FOR ABOUT 10 MINUTES. NO SMOKE, RETURNED WHILE CAPTAIN WAS IN CREW BUNK AT FL 400 DURING LIGHT TO MODERATE TURBULANCE. LASTED 10 MINUTES. THE ODOR CAME FROM THE GASPER VENTS. THE FLIGHT CONTINUED TO DESTINATION AND LANDED WITHOUT FURTHER INCIDENT. RAN PACKS AND RECIRCULATION FANS, PERFORMED A VISUAL INSPECTION. OPS CHECKED GASPER FAN VENTS. REMOVED AND REPLACED THE RT RECIRCULATION FAN AND FILTERS. OPS CHECKED NORMAL, OK FOR SERVICE IAW 21-25-01, AND AMM 21-25-08.