As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT # 309, JFK-SDQ. AT TOP OF DECENT AT ENG IDLE STRONG ODOR OF ACETONE (ACRID) IN FLIGHT DECK & CABIN. ODOR PERSISTED FOR 10 MINUTES INPROVED WHEN ENGINES NOT IDLE; C/W INFO NOTICE 2017-T015 AND IDENT ODOR TO BE TYPE 10 ENVIRONMENTAL PER TSM 05-50-00-810-831-A. NO ODORS PRESENT WITH BOTH PACKS AT THIS TIME. NO ODOR HISTORY. LEVEL A ECS DECON ACCOMPLISHED. MCC LEO NOTIFIED. A/C OK FOR SVC.