What was found
AIRCRAFT WAS GROUNDED: ACRID AVIONICS SMELL ENCOUNTERED 4:20 INTO FLIGHT. AVIONICS CHECKLIST STOPPED WHEN IFE J-45 BREAKER POPPED AND SMELL DISSIPATED. FLIGHT CONTINUED TO JFK LANDING SAFELY. ACCOMPLISHED SMOKE ODOR FUME INITIAL TROUBLESHOOTING JOB CARD 26L00021001. REPLACED IFE RELAY 31XN PER AMM 44-30-01 AND RESET J-45 CIRCUIT BREAKER. LEFT CABIN AIR RECIRCULATION FAN FOUND TO BE SOURCE OF ODOR. REPLACED FAN (AALA202202031035) PER AMM 21-21-51.