As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WITH PACK 1 RUNNING WE NOTICED A CHEMICAL LIKE SMELL-PERFORMED TSM 05-50-00-810-831-A PERFORMED APU OPS CHECK IAW AMM 49-00-00. RAN PACK TO CONFIRM ODOR, FOUND PACK 1 SOURCE OF ODOR. APU POWERED DOWN REMAINS ON DMI FOLLED TSM 49-00-00-810-921-A NOT OVER SERVICED NO SIGNS OF OIL OR LEAKS. SEE LP 241469-2 FOR PACK 1 DMI