Nairobi: A Boeing engineer said on Thursday that the cause of the battery problems that have grounded the company's 787 Dreamliners may never be known.
The engineering leader for the 787, Richard J Horigan, said the root cause of smoldering batteries experienced by the two different 787s may never be known because the evidence was destroyed by heat.
"When we say a root-cause we want to know exactly what happened, what size particles caused the cell to vent ... and we may never get there because the evidence is destroyed. When these cells vent there's a lot of heat damage on those cells," Horigan said.
25/04/13 AP/Times of India
