well Flight Safety,
how would you suggest avoiding a repeat?
the fact that the environmental factors are mentioned, allbeit without implying a direct causal link, but it being made very clear that there were no mechanical/electrical/electronic failures, nor RFI etc suggests to me that they suspect a link between the prolonged cold soak and the incident. So wouldn t it be advisable to avoid these extremely low OAT s, as long as the real cause is not known?