Owayeyinhloko yeNational Transportation Safety Board - isikhungo saseMelika esiphenya ngokuphahlazeka kwendiza eyakhiwe eCanada ngoLwesine olwedlule ngaseBuffalo, NY - uthi wonke ama-turboprop anenjini efanayo kufanele amiswe, okungenani kuze kuphothulwe uphenyo.
"Ngicabanga ukuthi into ewubuhlakani okufanele yenziwe ... ukumisa indiza," kuze kube yilapho uphenyo lwebhodi luphela, kusho uJim Hall, usihlalo wesikhungo sikahulumeni kusukela ngo-1994 kuya ku-2001.
Uphenyo olunjalo ngokuvamile luthatha kusukela ezinyangeni ezingu-18 kuya eminyakeni emibili, futhi ukutusa kukaHall kungadala umonakalo, njengoba izinkulungwane zama-passenger turboprop zisebenza emhlabeni wonke.
UHall uthe izindiza ezinezinjini ze-turboprop zindiza ngesivinini esiphansi kunamajethi, okwenza kube lula ukuthi iqhwa linqwabelane. Uphinde wagxeka ubuchwepheshe be-turboprop de-icing - "amabhuzu" enjoloba agcwele umoya anwebekayo futhi anenkontileka yokukhipha iqhwa, esikhundleni sama-heaters angaphakathi asetshenziswa kumajethi ukuze kugcinwe iqhwa.
Selokhu kwehla ingozi ye-Continental Connection 3407 kwashona abangu-50 endaweni yaseBuffalo eClarence ngoLwesine olwedlule, uqweqwe lweqhwa kuthiwa lungaba imbangela, kodwa abaphenyi bezingozi abakakusho ngokusemthethweni.
Indiza, i-Bombardier Q74 enezihlalo ezingu-400 eyakhiwe eToronto futhi yethulwa ngo-April odlule, iyasebenza emhlabeni wonke; Ezingu-219 zisetshenziswa abathwali abangaba ngu-30, okuyingxenye yemikhumbi yomhlaba wonke ye-880 Bombardier-built Q-series turboprops esetshenziswayo.
Kepha mancane amathuba okuthi isincomo sikaHall senziwe, njengoba i-US Federal Aviation Administration, ebhekele ukuphepha kwezindiza zomphakathi, iyasenqaba iseluleko sakhe.
"Asinayo imininingwane okwamanje engasiholela ekutheni simise le ndiza," kusho okhulumela i-FAA uLaura Brown.
“I-FAA nayo yonke imboni yezokundiza isebenze kanzima kule minyaka engu-15 eyedlule ukunciphisa izingozi ezihambisana noqhwaku futhi lezo zingozi zehle kakhulu ngenxa yalowo msebenzi.
"Indiza ebandakanyeke engozini inohlelo oluyinkimbinkimbi lokuthola iqhwa nokuvikela oluzuze eminyakeni eminingi yocwaningo nokuhlaziywa mayelana nendlela izindiza ezisebenza futhi zenza ngayo ezimweni ezibandayo," kusho uBrown.
Inkampani yezindiza yaseToronto iPorter Airlines isebenzisa kuphela i-Q400 kanti izolo uRobert Deluce, ongumengameli wale nkampani yezindiza kanye nesikhulu esiphezulu, uncome irekhodi lezokuphepha lendiza kanye nobuchwepheshe bokususa uqweqwe lwe-icing kanye ne-anti-icing. "Ukube (ibhodi lezokuphepha) linokukhathazeka, noma ukube i-FAA noma i-Transport Canada noma i-Bombardier inokukhathazeka ngendiza, yanoma yiluphi uhlobo, ngabe isimisiwe manje," esho.
“Kodwa lokhu akuzwakali njengento ehlobene nendiza. Lokhu kuzwakala sengathi kuhlobene nezinye izindaba ezisazophuma.”
Abaphenyi bengozi bathi iFlight 3407, ebisuka eNewark ilibangise eBuffalo, iphonseke yagingqika ngamandla ngaphambi kokuba iphonseke endlini encane ngoLwesine ebusuku, kwashona bonke abangu-49 ababekuyo kanye nowesilisa obesendlini. Kushone oyedwa waseCanada kule ngozi. Izolo bangaphezu kuka-2,000 XNUMX abantu abebehambele isikhumbuzo sabashonile e-US.
Ngaphambi kokuthi izisebenzi eziphahlazekile zibike “uqweqwe olubalulekile,” emaphikweni nakumawindi angaphambili endiza.
NgeSonto, i-NTSB ibike ukuthi indiza ibizihambela imizuzwana ngaphambi kokuthi iwe isuka esibhakabhakeni, okungenzeka yephule imithetho yezokuphepha kanye nemihlahlandlela yezindiza.
Okhulumela i-FAA uthe indiza ivunyelwe ukuthi izishayele ngaphansi kwezimo zeqhwa nezingalingani. Uhlelo lokususa uqhwa lwendiza lwaluvuliwe ngemuva nje kokuthi isuke eNewark.
UHall uthe uqweqwe lweqhwa lwaba yimbangela yokuphahlazeka kwendiza i-ATR-1994 twin turboprop ngo-72 e-Indiana.
UWilliam Voss, umongameli weFlight Safety Foundation, utshele iSolezwe phambilini ukuthi indiza eyabandakanyeka engozini yango-1994 yayizivivinya ngaphambi kokuba kwenzeke ingozi, okwakungase kwenze isimo saba sibi.
Imbangela yengozi yangoLwesine ibingakatholakali.
U-Hall uthe ukukhathazeka kwakhe akukhona nge-Bombardier, kodwa ngesitifiketi sendiza yezimo ezithile zokundiza, njengalezo ezikhiqiza uqweqwe lweqhwa.
“Ngiluhlonipha kakhulu uhlelo lokuphepha kwezindiza zaseCanada kanjalo nomkhiqizi wale ndiza,” kusho uHall. “Okungikhathazayo kungokwehluleka kwenqubo yokunikezelwa kwezitifiketi e-United States ngenxa yezingozi ezibandakanya izindiza eziklanywe ngendlela efanayo, okwakuyi-ATR-72.”
I-Q400 ibingekho emakethe kwaze kwaba ngu-2000 kodwa uHall uthe ukufana kwesakhiwo kusafanele ukuthi kuphenywe ngokuphepha okuphelele kwezindiza ezingama-twin-prop.
Okhulumela iBombardier uJohn Arnone uthe selokhu i-Q400 yaqala ukusebenza ngo-2000 izindiza ezisetshenziswayo njengamanje sezingene amahora angaphezu kwesigidi esisodwa kanye nemijikelezo yokusuka nokuhlalisa eyizigidi eziyi-1.
"Ingozi enyantisayo eyenzeke ngaseBuffalo imele abantu bokuqala abashonile endizeni i-Q400," esho.
U-Arnone uthe ubengazi ngezigameko ezedlule nge-icing.
Uthe akucaci ukuthi kungani uHall esho lokhu, wengeza ngokuthi, “eqinisweni lokho akuguquli okubalulekile kithi njengenkampani njengamanje,” okuwukuseka uphenyo. I-Bombardier ithumele ithimba lochwepheshe bezokuphepha nezobuchwepheshe ukuze basebenze nebhodi lezokuphepha, esho.
