As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER SOME TIME IN CRUISE FLIGHT AN OFFENSIVE ODOR WAS REPORTED IN THE FRONT PART OF THE CABIN. THERE WERE SOME REPORTS OF THROAT IRRITATION. REPLACED BOTH WATER SEPARATORS AND RAN THE PACKS ON FULL HOT FOR TWO HOURS. CHECK-C 3-30-98 STL.