PPRuNe Forums - View Single Post - Bristow S76 down in Lagos discussion (Not condolences)
Old 3rd Oct 2015, 17:13
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helicopterkeys
 
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I did not study the picture of the engine in the report very much. The rod end is much more disturbing. My memory says the containment ring for the power turbine was deformed, and I have seen that before in an Arriel 2. A. Sudden stoppage caused a main drive shaft coupling failure, and a TR DS coupling failure, the engine did not shut down, until the fuel supply was shut off, even though the power turbine had disintegrated and departed out the exhaust. The containment ring did its job and then started to melt I guess- it was tear drop shaped by the time it was all over.
To me all evidence points to the rod end including the resulting bulletins. I'm sure a corresponding action would have been taken if the engine were thought to be a contributing cause, and as far as I know all post accident bulletis, ADs, and MM amendment.
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