# PMDG B777 FMC issues

**URL:** <https://forum.navigraph.com/t/pmdg-b777-fmc-issues/23998>\
**Category:** Navigraph Hub\
**Created:** [August 2, 2026, 9:02am UTC](https://forum.navigraph.com/t/pmdg-b777-fmc-issues/23998 "2026-08-02T09:02:46Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![RegionalJet388](https://avatars.discourse-cdn.com/v4/letter/r/ebca7d/32.png) [@RegionalJet388](https://forum.navigraph.com/u/RegionalJet388)\
**Post date:** [August 2, 2026, 9:02am UTC](https://forum.navigraph.com/t/pmdg-b777-fmc-issues/23998/1 "2026-08-02T09:02:46Z")

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Hi, since recently a few issues with the PDMG B777 FMC.

1. departure airport arrival approaches no longer available on DEP/ARR index page.

2. in flight total distance remaining is incorrect because RWY threshold has been added to end of missed approach coding, this messes up top of descent point.

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**Author:** ![srcooke](https://avatars.discourse-cdn.com/v4/letter/s/9d8465/32.png) [@srcooke](https://forum.navigraph.com/u/srcooke)\
**Post date:** [August 2, 2026, 9:17am UTC](https://forum.navigraph.com/t/pmdg-b777-fmc-issues/23998/2 "2026-08-02T09:17:02Z")

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Which sim platform ?

Post examples of issue 1.

Your second issue is apparently a known [PMDG bug](https://forum.pmdg.com/forum/microsoft-flight-simulator-2020-2024-products-discussion/pmdg-777/general-discussion-aa/400892-significant-dtg-error?p=400913#post400913).

Steve

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**Author:** ![srcooke](https://avatars.discourse-cdn.com/v4/letter/s/9d8465/32.png) [@srcooke](https://forum.navigraph.com/u/srcooke)\
**Post date:** [August 2, 2026, 9:38am UTC](https://forum.navigraph.com/t/pmdg-b777-fmc-issues/23998/3 "2026-08-02T09:38:36Z")

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Posted on the PMDG discord today:

> PMDG is asking for the community’s assistance with troubleshooting a potential issue affecting the current version of the 777.
> 
> Before participating, please ensure you meet both of the following requirements:
> 
> - You are using **Microsoft Flight Simulator 2024** on **PC**
> - Your PMDG 777 is updated to the latest version: **2.04.143**
> 
> If you meet both requirements, please help them by completing the following:
> 
> 1. Load into the simulator with the PMDG 777.
> 2. On the **RTE page** , enter your **Departure** and **Destination** airports.
> 
> **What to look for:**
> 
> If you receive a **“NOT IN NAV DATABASE”** message after entering either airport, please **submit a support ticket through OC3** with the details.
> 
> If you **do not** receive the message, no further action is needed.
> 
> Even if you don’t encounter the issue, your participation still helps them narrow down what may be causing it.
> 
> The entire PMDG team greatly appreciates everyone who takes a few minutes to test this and assist with the troubleshooting process. Thank you for helping them investigate!

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**Author:** ![system](https://europe1.discourse-cdn.com/flex013/uploads/navigraph1/original/1X/4cc83e90d70ab312b1bd2d7527bddad309607265.png) [@system](https://forum.navigraph.com/u/system)\
**Post date:** [August 9, 2026, 9:39am UTC](https://forum.navigraph.com/t/pmdg-b777-fmc-issues/23998/4 "2026-08-09T09:39:26Z")

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Closed on August 9, 2026, 9:39am UTC

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