No post “Sobre o acidente com o B747 no Afeganistão em particular – e a questão de P&B em geral”, foi dito que, “sem querer fazer um ‘CENIPA virtual’ aqui (ou ‘virtual NTSB’, para ser mais preciso), parece-me bastante provável que deve ter havido um problema de Peso & Balanceamento associado ao acidente (…)”.
Pois então, ontem o site The Aviation Herald publicou o seguinte adendo ao seu artigo sobre o referido acidente:
On Jun 2nd 2013 accident investigators by the Ministry of Transport and Civil Aviation of Afghanistan reported in a press conference that quickly shifting cargo, consisting of three armored vehicles and two mine sweepers totalling at 80 tons of weight, caused the accident. The cargo slammed so hard at the back of the aircraft, that parts of the aircraft separated and wiring in the back was severed. As result of the shift and loss of aircraft parts the center of gravity moved so far back, that the attitude of the aircraft could no longer be controlled, the nose of the aircraft rose beyond the flying envelope of the aircraft and the aircraft stalled destroying the aircraft and killing all crew in the resulting impact. Parts of the aircraft, that separated as result of the initial load shift, were recovered from the runway. The straps used to tie down the cargo were recovered from the accident site, although charred they provided evidence of having fractured before final impact, it was unclear however, whether the fracture(s) had happened before or after takeoff.
The FAA had released a Safety Alert for Operators on May 20th 2013 regarding securing heavy vehicles in aircraft, see News: FAA concerned about potential safety impact of carrying and restraining heavy vehicle special cargo loads.
Isso significa que, agora oficialmente, está estabelecida a causa do acidente (ou “seu principal fator contribuinte”, para usar um vocabulário mais preciso) : as amarras dos veículos militares transportados pelo B747 se romperam, a carga foi arremessada contra a traseira da aeronave, desbalanceando-a, e danificando as estruturas que receberam o impacto.
Agradeço ao leitor Freddy da Silva, que enviou o link acima.