As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
VOMIT/CHEMICAL ODOR REPORTED BY FLIGHT ATTENDANTS, VERY MILD DURING TAXI OUT, STRONGER DURING DESCENT. APU NOT USED FOR SHUTDOWN AS IT WOULD NOT START. APU IDENTIFIED AS SOURCE OF ODOR. APU FOUND TO BE LEAKING INTERNALLY. MAINTENANCE REPLACED APU IAW JC 26L31049005 AND COMPLETED WORK OF 26L00021002, AND 26L00021004 AND PERFORMED SASTISFACTORY OPERATIONAL CHECK.