Hi everyone,

I am having a recurring issue with the iniBuilds A350 in MSFS 2024.

No matter which flight I plan, as soon as I import the SimBrief data and set up the flight plan, calculated points such as the Top of Descent are placed far away from the actual route, sometimes completely off the ND route line. As a result, the fuel prediction on the fuel page also becomes unusable and shows a negative value for fuel at destination.

In my latest example, I planned a flight from EDDM to EDDH. The route appears broken on the ND, with green route segments drawn across the map in a “spaghetti” pattern. The FMS/ND also shows a point with a distance of around 2967 NM, which obviously makes no sense for such a short flight. On the fuel page, the trip/fuel calculations then show invalid or negative values, including negative destination EFOB.

Important detail: I am not importing SID or STAR from SimBrief into the MCDU/FMS. I select the SID and STAR manually in the aircraft after importing the SimBrief flight plan. So the issue seems to happen either after the SimBrief route import or when the manually selected procedures are combined with the imported enroute route.

In the screenshots, the suspicious item seems to be INPU3E. It looks like the FMS may be treating the SID name or procedure incorrectly as a route point, or it may be connecting the procedure to the enroute route in a wrong way. This results in a route distance of several thousand nautical miles and breaks the fuel/TOD calculations.

What I have observed:

• The issue happens on multiple flights, not just one specific route.

• SID and STAR are selected manually in the A350 FMS.

• SimBrief is only used to import the OFP/enroute data and fuel/load data.

• TOD is calculated far away from the actual route.

• The ND route display becomes broken, with long route lines across the map.

• Fuel at destination / EFOB becomes negative.

• On the example EDDM–EDDH flight, a distance of about 2967 NM is shown, which is impossible for the planned route.

• The active nav database shown in the aircraft is 14MAY–10JUN.

Steps to reproduce:

1. Create a flight plan in SimBrief.

2. Load the iniBuilds A350 in MSFS 2024.

3. Import the SimBrief data into the aircraft.

4. Manually select the SID and STAR in the FMS.

5. Check the ND and F-PLN pages.

6. Notice that route geometry may be incorrect, calculated points like TOD are placed off-route, and fuel predictions become negative.

Expected behavior:

The imported SimBrief route and manually selected SID/STAR should connect correctly. TOD should be calculated on the active route, and the fuel prediction page should show realistic destination fuel values.

Actual behavior:

The FMS seems to create an invalid route with extremely long legs or incorrectly placed waypoints/procedure elements. This causes TOD to be displayed far away from the actual route and makes the fuel prediction invalid, often showing negative fuel at destination.

Has anyone else experienced this issue with the iniBuilds A350 in MSFS 2024? Could this be related to a navdata mismatch, procedure handling, or a bug in the way the A350 connects manually selected SID/STAR procedures to an imported SimBrief route?

I have attached screenshots showing the broken ND route display, the F-PLN page, and the negative fuel prediction values.

Edited Sunday at 05:54 PM1 day by niklasS39
more information

Here another screenshot of the ND

Hi, it looks like something has corrupted during your install or the initialization during the first load. Do me a favor and go ahead and clear the WASN for me, relaunch the sim and let me know if this issue is still occurring.

Yes, worked.

Thank you very much 😍

4 hours ago, niklasS39 said:

Yes, worked.

Thank you very much 😍

You've very welcome :)