What was found
MAINT LIGHT ILLUMINATED. GROUNDED - YES. FOUND MAINTENANCE MESSAGE 36-10170 "IASC (BLEED) HAS NO ENGINE - 1 PS3 AND T3 DATA ON MDS-DPC GP 2 BUS DETECTED BY: INTEGRATED AIR SYSTEMS CONTROLLER (IASC) - LEFT". PERFORME DIFIM TASK 36-10-00-810-809 AND AMM 36-00-00-710-801 LRU REPLACEMENT TEST. TEST PASS. MTX LIGHT IS EXTINGUISHED. PER FIM INTERMITTENT FAULT, OK FOR SERVICE SEAMC ARNIE NOTIFIED.