As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT#1033, MCO-SJU. LEVEL II FUME EVENT. STRONG PERSISTENT MELTED CRAYON SMELL FROM 10,000 UNTIL LANDING SMELLED BY BOTH PILOTS. ALSO NOTICEABLE ON APU BLEED AFTER PARKING AT THE GATE. SMELL SEEMED TO BE CONFINED TO THE COCKPIT.; C/W INFORMATION NOTICE 2017-T015 SECTION B2. IDENTIFY ODOR TYPE 1 APU. PERFORMED DECONTAMINATION PER TSM 05-50-00-810-085D. A/C IS OK FOR SERVICE.