As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHEN COCKPIT PAC SUPPLY TEMP INCREASED ABOVE 130 DEGREES THERE WAS A STRONG PETROLEUM TYPE ODOR THAT WENT AWAY WHEN THE COCKPIT PAC WAS TURNED OFF. CLEANED COALSCER AND OZONE CONVERTERS. RAN APU AND OPS CHECKED PAC SYS. OPS CHECK GOOD. NO ODOR PRESENT. LEAK CHECK COCKPIT ACH OIL BOWL. LEAK CHECK GOOD IAW MM 21-51-00 AND 12-10-01.