As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SMOKE/BURNING SMELL IN ROW 4-PERFORMED TSM 05-50-00-810-831-A TO IDENTIFY ODER. ODER WAS FOUND TO BE PACK 1. PERFORMED DECONTAMINATION OF ECS IAW AMM 21-00-00. NO ODER NOTED. PERFORMED ENGINE RUN IAW AMM 71-00-00. NO ODER NOTED. AS PERCAUTIONARY R/R AVIONICS BLOWER FAN IAW AMM 21-26-51. OPS CHECK GOOD.