Originally posted by FODPlod
Are you saying the problem is a permanent show-stopper then?
I don't think it is a permanent show-stopper, but one where a time-out is required to determine the scope of the problem. It could be unique to one turbine blade where an undetected, but should have been detected, defect was the source, or it could be a more general defect/material problem which could involve multiple blades. Unlike what some articles report, the turbine consists of a one stage high pressure turbine and a two stage low pressure turbine. Even if this is a stage 2 LPT blade, its failure could cause significant damage aft in the A/B as blade sizes and weights have gotten larger with fewer blades per rotor. So I think they did the correct thing until the true cause can be ascertained. It is unusual for a LPT turbine blade with low operating hours to develop detectable cracking.
TD