Why sometimes I cant startup the engine?

Edited: Problem solved.

What could be happening?

Sometimes I start up the engine normally and sometime the sound go off when engine is at 11% e dont continue?

The thottle lever has to be at a super precise position? There is no different warning light on panel.

Do you advance the trottle from the stop to the ground idle position ?

Ground idle position is when the throttle leaves the first part, about 2 inches ahead right?

Ground idle position is when the throttle leaves the first part, about 2 inches ahead right?

Yes

Sure ventil/ignition button on R or L ? Maybe out of battery, when you can't startup, try to call for ground power

I already have ground power and vent key is ok.

I made a video showing the issue.

It's not because your are in training mission ? You have same thing in normal mission ? Because I think training mission is scripted and wants you to turn on alignment

I just did a try with ultra minimal procedure

- batt on

- ask for ground power

- fuel shut off selector on

- startup button (throttle at 10%)

I didn't touch anything else, engine start and running well

I tried in fast mission. The first time it doesn't start. The second time it started up!

I found I was misinterpreting the vent key position.

In the tutorial the narrator says to put the vent key in some position, when the in fact that key was already in one effective position.

Many Thanks!