What was found
AT 37,000 FT SMELLED STRONG SULFUR ODOR IN C/P. SHORTLY AFTER, SAME SMELL REPORTED IN AFT MAIN CABIN (NO SMELL IN LAVS). SMELL DISAPPEARED AFTER 2-3 MIN. ABOUT 5 MIN LATER, STRONG BURNING ELECTRICAL SMELL IN C/P PLUS THROUGHOUT CABIN. RAN SMOKE/AVIONICS SMOKE CHECKLIST AND SMELL DISAPPEARED. EMERGENCY DIVERTED. PERFORMED TSM NR 24-00-00-810-823 FOUND LT CABIN RECIRC FAN SUPPLY C/B POPPED (15HG). VERIFIED ASSOCIATED WIRING INTEGRITY FOR 15HG AND VISUALLY VERIFIED FAN 15HG CAUSE OF ODOR. ITEM WAS TRANSFERRED PER MEL 21-21-01. UPON ARRIVAL AT JFK CABIN RECIRCULATION FAN (15HG) REPLACED IAW AMM 21-21-51. ALL OPS CHECK OK.