As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT GATE WITH APU BLEED ON VOMIT / DIARES SMELL WAS COMING FROM OVERHEAD VENTS BLEAD TURNED OFF. ACCOMPLISHED TSM 05-50-00-810-931-A . PERFORMED INSPECTION THROUGH A/C CABIN AND FOUND NO EVIDENCE OF BAD ODOR AND DETERMINED POSIBLE SOURCE TO BE MISCELLANIUS TYPE 9 A/C OK FOR CONTINUED SERVICE IAW 05-50-00.