# Navigraph YBBN not showing

**URL:** <https://forum.navigraph.com/t/navigraph-ybbn-not-showing/24376>\
**Category:** SID/STAR/APPR\
**Created:** [September 28, 2026, 4:16am UTC](https://forum.navigraph.com/t/navigraph-ybbn-not-showing/24376 "2026-09-28T04:16:50Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![NAVData](https://dub1.discourse-cdn.com/flex013/user_avatar/forum.navigraph.com/navdata/32/30549_2.png) [@NAVData](https://forum.navigraph.com/u/NAVData)\
**Post date:** [September 28, 2026, 5:20am UTC](https://forum.navigraph.com/t/navigraph-ybbn-not-showing/24376/2 "2026-09-28T05:20:02Z")

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Hi,  
You will find the answer here. It is not navdata related. Follow these steps, and it should be solved:

> [@FAQ - PMDG B777/747/737NGXu FMC Runways Not Available](https://forum.navigraph.com/t/faq-pmdg-b777-747-737ngxu-fmc-runways-not-available/52):
>
> The PMDG B777/747/737NGXu can sometimes give errors in the FMC suggesting runways not available. This is not a navdata provider issue. It is caused by a file created by the PMDG software. To correct, please: Make sure your FS is not running. Delete …your FS root\PMDG\NAVDATA\ARPT\_RWY.dat file. This is not a Navigraph file, but part of the PMDG B777/747/737NGXu. For optional RAAS, download the tool makerwys.exe from [Useful additional programs - Download Links - The simFlight Network Forums](http://forum.simflight.com/topic/66136-useful-additional-programs) and…

Thank you  
Richard

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