Hello, It is this quest: http://www.wowhead.com/quest=11889/death-from-above ?
The quest type "UseItemOn" don't work?
Your code in "Macro when interact" is incorect, use code like:
local name = GetItemInfo(35278);
RunMacroText("/use " .. name);
(I don't recommand to use /tar, it is not multilanguage, but if you want use it use this code: RunMacroText("/tar Reinforced Net"); )