As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: ON DESCENT BELOW 22000 FT THERE WAS A SOLVENT ODOR IN THE FLIGHT DECK ALL THE WAY TO LANDING BUT NO SMELL WAS NOTED IN THE CABIN - MAINTENANCE REPLACED THE RECIRCULATION FILTERS AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK WITH NO ODORS NOTED