What was found
FLT 177, BOS-LAS. FUMES SMELL OF MAGIC MARKER/DRY LATEX PAINT OCCURRED AFTER ENGINE START, T/O POWER TIL 6200', DESCENT 24000' TIL AND END. SORE THROAT, METALLIC TASTE IN MOUTH, HEADACHE, BURNING EYES. ENGINE RUN ACCOMPLISHED IAW MCC DIRECTION-NO ISSUES WITH EITHER ENGINE BLEED PROVIDED PRESSURE. PRIOR TO ENGINE SHUTDOWN APU BLEED WAS TURNED ON. IMMEDIATELY SIMILAR TO PREVIOUS REPORT WAS DETECTED THROUGHOUT CABIN FOR SHORT (30 SECOND) PERIOD. ( APU BLEED AIR SUPPLY SYSTEM ). APU BLEED FOUND TO BE AT FAULT AND PLACED ON MEL 36-12-01 CAT C MDDR. PER MCC PLACARD INSTALLED MX4 UPDATED. C/W INFORMATION NOTICE 2017-T015D SECTION C. A/C IS OK FOR SERVICE.