What was found
AFTER TAKEOFF, APPROX 2100 PM, JFK TO SJC, AIR TURNBACK DUE TO ODOR OF ELECTRICAL BURNING ODOR THROUGHOUT THE CABIN, SOME ODOR IN THE COCKPIT. PERFORMED TSM 24-00-00-810-823, NO DISCREPANCY NOTED. NO ELECTRICAL ODOR RETURNED UPON AIRCRAFT ARRIVAL. OPERATED PACKS NO ODOR NOTED. COMPLIED WITH TSM 23-39-00-810-801, POWERED UP THE SYS, OPS CHECK OK. ALL GREEN ON EV IN MAINT CONSOLE, NO ODOR DETECTED, NO FURTHER ACTION REQUIRED.