From the NY times article:
http://www.nytimes.com/2013/04/26/op...t-the-faa.html
Boeing initially estimated that there was the potential for one battery failure incident in 10 million flight hours. As it turned out, smoke and fire broke out in batteries on two separate 787’s in just the first 52,000 flight hours.
I think I will be making an effort to avoid 787s until they've clocked up a significant number of hours without any battery fire/smoke incidents (contained or not) - if any occur it'll be until they fix the root cause.
OC619