As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 347 - PVR - ODOR - APU BLEED EMITS STRONG ODOR. FLIGHT ATTENDANTS COMPLAIN OF HEADACHES. REMOVED AND REPLACED APU (AUXILIARY POWER UNIT). OPERATIONAL CHECK WAS GOOD. FOUND APU AS THE SOURCE OF ODOR. APU INFORMATION UPDATED TO COMPLETE REPORT.