Hello Radken,
The newer cfm-56-7B engines are fadec controlled and the eec provides for inflight flameout protection if there is an uncommanded reduction in N2 or N2 is below idle. The Fan is Wide chord but i'm not sure how much the core has changed? With regards to flight in heavy rain etc the manual says, avoid if possible but to place the start switches to "CONTinuous" probably as a backup to the auto relight function. No minimum N1 is specified, it does say to "Maintain an increased minimum thrust setting", An old training capt once told me min 40% on app for spool up reasons alone! Maybe the Lawyers got involved. Always easy when your not in the hot seat yourself. As you said it will all come out soon. Regards. Kimir.
Last edited by kimir; 20th Apr 2013 at 00:36.