Steve76 & IHL
Took your collective advice and re-read the entire thread, my post and the TC report.
What I see is that the post is still headed "Astar jack stall" .
In my post (slightly tongue in cheek if you didn't note) I made an apparently simple observation that "if someone can provide real evidence that boosted flight controls commomly lock up while the particular type is being operated within its certificated flight envelope, then we need to ask some really serious question to the various airworthiness authorities who have certificated it." I also went on to say that the regulatory authorities would take appropriate action if someone could provide real evidence etc etc.
What's difficult to understand about that? Have you any real evidence that this has occurred while operating within the certificated flight envelope?
In the matter of the TC report here are a few notable points as follows:
- The hyd CB was likely out in flight and probably un-noticed by the crew
- The hyd belt apparently failed in flight
- The hyd test switch was activated
- The M/R accumulator pressures were less than 50% of normal pressure
- No other anomolies were noted in the hyd components
- Para 2-3 said in part "As a result of not slowing the helicopter to the recommended . . . . "
- The report said in part " The reason for departing controlled flight could not be determined. . .
Don't see anything anywhere relating to jack stall (The thread title).
STL