# EGSS in PMDF 737 NXu

**URL:** <https://forum.navigraph.com/t/egss-in-pmdf-737-nxu/14421>\
**Category:** SID/STAR/APPR\
**Created:** [January 8, 2024, 3:43pm UTC](https://forum.navigraph.com/t/egss-in-pmdf-737-nxu/14421 "2024-01-08T15:43:25Z")\
**Posts on this page:** 1\
**Showing post:** 4

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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:** [January 8, 2024, 5:00pm UTC](https://forum.navigraph.com/t/egss-in-pmdf-737-nxu/14421/4 "2024-01-08T17:00:45Z")

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Hi,  
thank, please try this an let us know,when it’s 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…

I guess, it’s more a PMDG issue rather a navdata issue.

Thank you  
Richard

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