What was found
FLT#1470, CHS-LGA. 'DIRTY SOCK SMELL BELOW 10000 FT. ISOLATED BY TURNING PACK #1 OFF AS SMELL WAS MOSTLY CONTAINED IN COCKPIT & FWD CABIN SMELL IMPROVED BUT STILL PRESENT; C/W INFO NOTICE 2017-T15 SECTION (A) ISOLATED FAULT TO TYPE 10, 1C TSM 05-50-00-810-831-A. RAN APU BLEED AND RAN BOTH ENGINES AND PUT APU BLEED SUPPLY SYS ON DEFERRAL ( REFER TO LOG PAGE 3475929, ITEM 2) PERFORMED PACK BURN REF AMM 21-00-00-615-802-A.' (SUPPLEMENTAL TO FOLLOW)