Added: Jul 5, 2008

From: hinet2620

Duration: 9:58

波音747-244BM Combi客貨機。 機身編號：ZS-SAS 製造號碼：22171/488 首航年：1980年 機上有140名旅客及19名機組員。 罹難旅客當中日本知名的職業摔角選手薗田一治也搭乘此班機，他當時正帶著他的新婚妻子渡蜜月。 The Helderberg was initially unable to inform Mauritian air traffic control of its position, and when it did, it reported an incorrect location that caused the subsequent search to be concentrated too close to Mauritius. By the time the first surface debris was located 12 hours after impact, it had drifted considerably from the impact location. Lastly, the pingers in the flight data recorders were not designed for deep ocean use, and could therefore also not be used to locate the wreckage. The South African Navy sent the SAS Tafelberg and the SAS Jim Fouche to assist in the recovery of debris and remains.[2] The ocean tugs John Ross and Wolraad Woltemade also attended the scene, along with the Department of Environment Affairs vessel RS Africana. The South Africans searched unsuccessfully with sonar for the wreckage for two months. A specialist deep ocean recovery team from the USA was therefore contracted to find the site and recover the flight data recorders. The search area is described as being comparable in size to that of the Titanic, with the water at 5,000 metres (16,000 ft) being considerably deeper. However the wreckage was found within two days of the sonar search of the area commencing.[3] Three debris fields were found: 19°10′30″S 59°37′60″E / -19.175, 59.63333 (SA Helderberg Debris Site1), 19°9′53″S 59°38′32″E / -19.16472, 59.64222 (SA Helderberg Debris Site2) and 19°9′15″S 59°37′25″E / -19.15417, 59.62361 (SA Helderberg Debris Site3). These locations are 1.5, 2.3 and 2.5km apart, which suggested that the fuselage broke up before impact. The cockpit voice recorder was eventually located. However, the data recorder was never found as the debris area covered several square kilometers. [edit] The Margo commission A commission of inquiry was chaired by Judge Cecil Margo. The official report determined that while the Helderberg was over the Indian Ocean, a fire had occurred in the main deck cargo hold, originating in the front right-hand cargo pallet. This led to the loss of the airliner. The reason for the loss was not specified, but two possibilities were detailed in the official report: Firstly, that the crew became incapacitated due to smoke penetration into the cockpit. Secondly, that the fire weakened the structure and the tail separated leading to impact with the ocean. The manufacturer is quoted in the report as having "contested" any scenario that involved a break-up of the aircraft and thus the commission did no more than mention the two possible scenarios in its final report as incidental to the primary cause of the accident. The commission determined that the primary cause of the loss was because fire detection and suppression facilities in class B cargo bays (the type used aboard the 747-200 Combi) were inadequate. The accident alerted aviation authorities world-wide to the fact that the regulations regarding class B bays had lagged far behind the growth in capacity of such cargo bays. The exact source of ignition was never determined but sufficient evidence was found to confirm that the fire had burned for some time and that it might have caused structural damage. 在事故發生前，該機已飛行長達9.5小時，距離模里西斯僅約20分鐘航程，但主貨艙突然起火，當時空中服務員曾經以滅火器試圖撲 滅火勢，可是當時的火勢範圍太大。機員一度開啟通風系統，可是卻令情況更糟。在機師緊急呼叫模理西斯航管請求降低高度後不久，飛 機就與航管失去聯繫。 由於飛機殘骸沉沒於深海中，拯救異常困難。在事故發生後整整一年，都未能打撈出失事客機殘骸及黑盒。當打撈人員成功尋獲黑盒後， 亦因為黑盒困在深海時間太久而未能解讀。 至於起火原因仍眾說紛紜，由於當時的南非正值種族隔離制度引發的激烈政治、社會衝突，又南非長久以來持續介入非洲各國內戰，加上 南非當時遭國際社會經濟製裁、禁運軍火，卻不斷有秘密研製核武的傳聞，並且和當時中華民國政府在軍事、政治上往來密切(見「海功 號」)，因此一度還傳出機上挾帶了核子物質或軍火的說法。 (更多)

Channel: Autos

Tags: 1987年  火災觸發的航空事故  飛機  飛行中貨艙失火 

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