What was found
IN THE DESCENT, THE FA SITTING ON SEAT 9 NOTICED A BURNING SMELL COMING FROM THE BACK OF THE CABIN. NO SMOKE WAS PRESENT. PERFORMED TORQUE CHECK ON PAX COOLING TURBINE IAW MM 21-51-00, CHECKED GOOD. R & R SOCK ON PAX SIDE ACM IAW MM 21-51-13 (OLD/NEW PN: 180849-28), LEAK CHECKS GOOD. RAN ENGINES AND THERE IS NO EVIDENCE OF ANY BURNING SMELLS, TURNED ON ALL LIGHTS IN CABIN, CHECKED ALL ELECTRIC OUTLETS, TURNED ON COFFEE POT, MICROWAVE, OVEN, AND ALL COMPONENTS IN GALLEY. NO EVIDENCE OF BURNING SMELL. WE`VE BEEN CHECKING OUTLETS AND LETTING THINGS RUN FOR ABOUT 2 HOURS. INFORMED MCC AND DUTY MANAGER OF FINDINGS. NO FURTHER MAINTENANCE REQUIRED.