As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FA REPORTED A BURNED RUBBER ODOR IN MID CABIN AND FWD TO THE FRONT OF THE CABIN DURING DESCENT. COMPLIED WITH INSPECTION & TESTS IAW MCN 62172-01 ISSUE NO.2 STEP 1.A.-C. COULD NOT DUPLICATE ORIGINAL DISCREPANCY. NO ODORS WHILE RUNNING ACFT & CYCLING LIGHTS & SYSTEMS. NO FURTHER DEFECTS NOTED. RETURNED TO SERVICE.