As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DE-ICING FLUID ODOR REPORTED BY F/A IN THE AFT CABIN. THE ODOR WAS NEVER PRESENT IN THE FWD CABIN OR THE COCKPIT. THE F/A F1 & F3 DID NOT FEEL WELL ENOUGH TO CONTINUE THE FLIGHT AND FLT DIVERTED. RAN THE NR 1 & 2 ENGINES, APU SWITCHING BLEEDS. NR 1 & 2 PACKSON HIGH & LOW, NO ODORS DETECTED. PERFORMED LEVEL 1 ODOR EVENT TROUBLESHOOTING IAW INFO NOTICE 2017-T015C. OK FOR SERVICE.