<prompt> Pedzisa mutsara unotevera: Musi waJuly 2, 1987, ngarava inotakura mafuta inonzi Glacier Bay yakarovera pachimwe chinhu chakanga chakanyura muMontague Strait ikadurura marita 125 000 emafuta. Ngarava yacho yakanga ichienda kunogadzira mafuta muCook Inlet ichibva kuValdez, Alaska, pakaitika tsaona yacho. Sedge yakatumirwa senzvimbo inodzora inotsvedza yengarava 21 dzaiedza kuwanazve mafuta acho. Musi waMarch 24, 1989, imwe tangi yakabuda muValdez yakava nomugumo wakaipa zvikuru.  <response>: Exxon Valdez yakamhara paBligh Reef muPrince William Sound ichidurura oiri isina kugadzirwa. Sedge yakanga iri cutter yokutanga yeCoast Guard kupindura panzvimbo yacho. Gadziriro Yokudzivirira Nokudzorera Oiri muMvura Yakavhurika yakatangwa uye Sedge yakabvisa mafuta anopfuura mabharani 8.900 mugungwa. Panguva dzakasiyana-siyana panguva yekupindura kwekuputika iye akaitisawo kuongorora kwemahombekombe uye mabasa ekudzora kufamba kwemhepo. Muna 1990 vashandi veSedge vakavaka bhakoni rinovheneka iro zvino rinoratidzira Bligh Reef. 