Trouble keeping 787 engines on

I have flown only the C172. I just tried the default B-787-10 for the first time. I didn’t get very far. I am using a Honeycomb Alpha yoke and Bravo throttle.

I tried multiple times starting the 787 flight at the gate. After locating and enabling the battery and fuel pumps, I started the engines. On various attempts, I used either the start switch on the Alpha or the ignition/start switches on the cockpit overhead panel. I believe the engines started, but I am not sure as I got no throttle response when moving the throttle levers on the Bravo. But engine sounds definitely came on, but didn’t vary with the throttle stick movement on the Bravo. I then proceeded with push back. ATC dialogue with the AI Pilot seemed normal.

But, after the pushback truck disengaged I had two issues. 1. The throttles continued not to work - no plane movement and the cockpit display dials showed no throttle changes. 2. Suddenly, all electrical systems went off and the plane was completely inert. This happened multiple times as I reloaded the flight and tried again repeatedly. In each case, all electrical power went off about 5 minutes after I thought I had started the engines. All lights and panel instruments went completely off. No choice but to end the flight.

I may have issues with throttle axis assignment, so I’ll have to go through that. But the Bravo works fine with the C172. I looked at the pre-start and engine start checklists but didn’t find anything that I neglected to do. But, I’ll look again.

I’m pretty sure this is user error, but would appreciate any thoughts or help.

Also, is there a 3rd party mod for the default B-787 that fixes any problems it has? Just wondering.

Did you engage the fuelbutton (Below the throttlelevers)

Yes, @krab71, I think I did, but I will check when I restart MSFS. I also pushed the button for Balanced fuel flow.

Did you switch on the Apu prioriteit to start-up. This can at krast prevent löss of electric power

Thanks for your thoughts, @krab71 . Yes, I remember doing that too. I recall the 2 switches (one for each engine, I guess) overhead that I moved to the Start position. And a third overhead switch, which I believe is the start/ignition switch. But, all of this is new to me and I will try the startup again as carefully as I can.

My symptoms seem consistent with lack of fuel flow, so I will pay particular attention to that.

Click the SYS button on the dash above the screen, and you should able to display the fuel status page. That might help you figure out why the engines aren’t starting.

Edit: also, I forgot. I ran into something similar. Try this:
After turning on the battery, turn on the two left and two right pumps. Don’t touch the center pumps. Start the APU, wait for it to run up and become available. Don’t forget to turn on the APU generators which are off by default. Once you do all your other preflight stuff, start pushback and set the engines to start, and turn on the fuel control switches under the throttle. That’s how I did it a couple days ago and it worked.

OK thanks everyone. I’ve made some progress with your help.

My main issue with the 787 engines cutting off was because I didn’t pay enough attention to the fuel control just aft of the throttles, as was mentioned above. Once I flipped those on the engines remained on after starting. I was even able to make my first 787 flight and visual landing.

I did have other troubles, such as not being able to start the engines without Cntrl-E, the plane not following the flight plan, and some of the AP buttons not being able to be turned off in flight. But I will try to spend the time to learn.

My advice is to use a static weather profile with this plane (for the time being) In my situation, this plane is very sensitive to the live weather bug.

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