What was found
FLT#2822, PBI-BOS. ' FUMES EXPERIENCED ON DESCENT THROUGH 12.000'. NO IMPROVEMENT W/PACK 1 OFF. IMPROVEMENT W/PACK 2 OFF; PREFORMED INFO NOTICE 2017-T015, SECTION A (A) ISOLATED FAULT TO TYPE 10, (A) 1 C PER TSM 05-50-00-810-085-B (D) ACFT OK FOR SERVICE NO SMELL WITH ENG 1, 2 OR PACK 1,2.