As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WAITING FOR TAKEOFF A SUDDEN AND STRONG NOXIOUS ODOR AS NOTED BY 3 CREW MEMBERS AS WELL AS MULTIPLE PASSENGERS CREW (3) REPORTED NOT FEELING WELL AS RESULT. INSPECTED AC FOR SOURCE OF ODOR, REMOVED AND REPLACED FORWARD FA FLASHLIGHT BATTERY IAW CMM 25-60-11. OPS CHECK GOOD. NO SMELL NOTICED.