Ƙirƙirar wani nau'i mai mahimmanci na wannan jumla A watan Mayu 2013 KiwiRail ya sanar da cewa aikin ya kasance watanni shida a baya saboda matsalolin aiki a cikin hanyar sadarwa ta rayuwa.
Tabbas, mafi rikitarwa sigar jumla ita ce "A watan Mayu 2013 KiwiRail ya sanar da cewa aikin ya yi watanni shida a baya, tare da wutar lantarki a sama da aka kammala a watan Afrilu 2014, kuma jirgin farko na lantarki ya isa watan Satumba na 2013. "