Correction:

The real problem, as explained by PST wasn't the exposed above. The real problem is an intermitent contact or rubbing of the turbine wheel against the NGV. The turbine is actually being serviced by manufacturer.
Why is the real reason for this?
Is not clear yet.
The turbine exhibits this intermitent stopping from the beginning or the first starting attempt by me.
Manufacturer will explain this as their service progress.
The engine has about 23 Hrs. of operation and is running good except for this. Very noble reactor.[sm=wink_smile.gif]

Regards,
Juan.