As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT 754, PHL-CDG - THE CREW REPORTED A STRONG ODOR THROUGHOUT THE CABIN AND COCKPIT ESPECIALLY IN THE AFT. THE CREW AND SOME PASSENGERS EXPERIENCED SOME THROAT AND LUNG IRRITATION. THE FLIGHT RETURNED TO PHL AND LANDED WITHOUT INCIDENT. MAINTENANCE TROUBLESHOT CABIN AIR QUALITY, BLEED AIR ANALYSIS, AND ENGINE CABIN ODOR ON LEFT AND RIGHT ENGINES. THE RIGHT ENGINE WAS REMOVED AND REPLACED AND THE RIGHT ENGINE IP CHECK VALVE.