As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 1233, MCO-SJU. DURING FLIGHT IDLE DESCENT FROM CRUISE ALTITUDE. DIRTY SOX ODOR AFTER 7-8 MINS INTO DESCENT IN FLT DECK & AFT CABIN. ODOR DISSIPATED AFTER ENGINES POWERED UP & DID NOT RETURN.; COMPLIED WITH INFO NOTICE 2017-T015 STEPS 1 AND 2 IDENTIFY ODOR AS TPY 8, PERFORMED DECONTAMINATION LEVEL A PER AMM 21-00-00 615-802 A/C IS OK FOR SVC.