As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UPON DESCENT THE COCKPIT AND REAR CABIN HAD PUGENT/ACRID ODOR. IT DIDNT GO AWAY UNTIL DOORS OPENED. GROUNDED - YES. REF DMI 550496, PACK BURN (LEVEL A DECONTAMINATION) NOT PERFORMED. PERFORMED LEVEL A MANUAL DECONTAMINATION USING ENGINE BLEED REF AMM 21-00-00-615-809-A. AIR QUALITY NOW ACCEPTABLE. OK FOR SVC.