conclusive cause of the fire. Margo commission An official commission of inquiry was chaired by South African Judge Cecil Margo, with co-operation from the NTSB and the aircraft's manufacturer, Boeing. The board of the "Margo Commission" consisted of Judge Cecil S. Margo, Judge Hurrylall Goburdhun (Mauritius), George N. Tompkins Jr (USA), G.C. Wilkinson (UK), Dr Y. Funatsu (Japan), J.J.S. Germisuys (South Africa), Dr J. Gilliland (South Africa) and Colonel Liang Lung (Taiwan). The official report determined that while Flight 295 was over the Indian Ocean, a fire had occurred in the cargo hold of the main deck, originating in the front right-hand cargo pallet. Aircraft parts recovered from the ocean floor showed fire damage sustained in temperatures over ; tests showed that temperatures of would have been required to melt a carbon-fibre tennis racket recovered from the crash site. The fire also damaged and destroyed the aircraft's electrical systems resulting in the loss of many of the instruments on the flight deck and rendering the crew unable to determine their position. The reason for the aircraft's loss was not identified beyond doubt, but there were two possibilities detailed in the official report: firstly, that the crew became incapacitated due to smoke penetrating into the cockpit; and secondly, that the fire weakened the structure so that the tail separated, leading to impact with the ocean. The commission concluded that it was not possible to apportion blame to any one individual for the fire, removing any terrorism concerns. Boeing is quoted in the report as having "contested" any scenario that involved a break-up of the aircraft, hence the commission went no further than simply mentioning the two possible scenarios in its final report, as incidental to the primary cause of the accident. The commission determined that inadequate fire detection and suppression facilities in the class B cargo bays (the type used aboard the 747-200 Combi) were the primary cause of the aircraft's loss. The accident alerted aviation authorities worldwide that the regulations regarding class B cargo bays had lagged far behind the growth in their capacity. The exact source of ignition was never determined, but the report concluded that there was sufficient evidence to confirm that the fire had burned for some considerable time and that it might have caused structural damage. Combi design The crash was the first fire incident on the 747 Combi and one of few fires on widebody