As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING DESCENT THE CREW NOTICED A STRONG CHEMICAL ODOR PERMEATING THROUGH THE FLIGHT DECK, ALSO THROUGH THE FORWARD PORTION OF THE PASSENGER CABIN. THE CREW DONNED THEIR OXYGEN MASKS FOR THE FINAL PORTION OF THE DESCENT AND APPROACH. ENGINE 1 REPLACED.