What was found
STRONG BURNT ELECTRICAL SMELL IN FWD GALLEY AND FLIGHT DECK AFTER APU START ON ARRIVAL IN MSY. C/W NO GO ODI ATA 2172 STEPS 1-4, REPLACED BOTH RECIR FILTERS IAW AJ21-22-03-01AAA-520A, ALSO POWERED UP ALL GALLEYS ,NO ELECTRICAL SMELL DETECTED, OK FOR SVC. (LP# 6481414)