FAIL on ITT scale - CJ1+/CJ2+
On powering up our aircraft Citation CJ1+/CJ2+, due to the current arctic cold, both sides of the ITT scale showed FAIL. With the GPU connected, it took 15 minutes until the avionics indications were sufficiently warmed up and the FAIL indications disappeared. Of course, I wouldn't try to start an engine with the ITT temperature scale missing.
However, I was wondering if the FADEC would block an engine start due to that information missing (No eng ctrl sys fault was on the annunciator panel!) Due to the fact, that the ITT temperature scale is merely indicative with fixed temperature limits (as opposed to N1 limits set by FADEC depending on OAT etc.) and the pilot being responsible for aborting an engine start, I suppose, an engine starst could be made. What do you think?
Cecco