Posted for "George Braly" <gwbraly@gami.com>:

 
 Ron,
 
 Because loss of compressed air from a turbo is most often a result of a loss
of integrity in the induction system, rather than the exhaust system,  I think
it is bad policy to just automatically shut an engine down in the face of loss
of MP.
 
 Let me suggest that you should fly an airplane with an adequate firewall, or
you should not have a turbo.
 
 With that in mind,  then we teach pilots
 
 1) to reduce power to the minimum required to maintain altitude.
 
 2) To divert towards the nearest suitable landing location;
 
 3) To descend to the minimum altitude required for reasonable terrain
clearance and from which an emergency landing could be made in the event of
fire;
 
 4) Continue to monitor the engine and at the first indication of smoke or
fire,  to then treat the matter as a fire emergency, using the POH engine fire
procedure.
 
 Doing 1 & 3 above will dramatically reduce the pressure in the exhaust system
and dramatically reduce the possibility of engine compartment fire in the
event the source of the problem is an exhaust system failure.
 
 Regards,  George