As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSPECTION TYPE:N/A PASSING THROUGH 12000' IN THE DESCENT INTO ONT WE GOT A PUTRID ODOR AND A PACK 2 FLOW LITE WITH AN INCREASE IN TEMP. RAN #2 PACK SYS FOR SERERAL MINUTES. OPS CHK GOOD PER MM TASK 21-53-00. RAN OTHER PACK- NO ABNORMAL ODOR NOTICE.