Tech performed service on coleman split furnace. As tech walked in house customer stated drain pan was filling with water. Luis was at last visit for clogged drain line and said the pan needed to be leveled. Stated to homeowner about situation and agreed to level out drain pan. Tech leveled out drain pan and showed customer that pan is level. All ok at this time. As tech was walking down wooded deck, the bottom wood step snapped. Customer is aware of situation and would like for it to be replaced. Found no other challenges at todays visit.