As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF STRONG ODOR IN THE CABIN, SEVERAL PASSENGER AND CREW MEMBERS COMPLAINING OF HEADACHES. CREW ELECTED TO RETURN TO FIELD. REMOVED AND REPLACED ENGINE NR 2 4TH STAGE SHUTOFF VALVE. OPERATIONAL CHECK GOOD. RETURNED AIRCRAFT TO SERVICE. (M)