What was found
AIR RETURN TO ORD SMELL ON TAKEOFF CABN SMELL ON CLMB/ NO EMERGENCY DECLARED /OVERWEIGHT LANDING/NO INJURIES/300 SINK SMELL OF STRONG SMOKE ELECTRICAL POSSIBLY ON TAKE OFF CREW AND FAS AND PASSENGERS ALL SMELL IT. C/W WORK SCOPE R1 AND FIM TASKS 21-20-00-810-801-A AND 21-20-00-810-803-A REF NRWC 047-ORD-03672, 047-ORD-03674, 047-ORD-03675, 047-ORD-03676, 047-ORD-03677. NO DEFECTS OR SMELLS NOTICED.