Skip to content
View in the app

A better way to browse. Learn more.

The AVSIM Community

A full-screen app on your home screen with push notifications, badges and more.

To install this app on iOS and iPadOS
  1. Tap the Share icon in Safari
  2. Scroll the menu and tap Add to Home Screen.
  3. Tap Add in the top-right corner.
To install this app on Android
  1. Tap the 3-dot menu (⋮) in the top-right corner of the browser.
  2. Tap Add to Home screen or Install app.
  3. Confirm by tapping Install.

Terrain ND - What is that?

Featured Replies

Hi! As you can see I´m above 3000ft over the sea, heading for the LOC 25R in LEBL. I got steady pull up warnings and see the terrain ND which comes on automatically. What is going on here??? Thanks,Holger unbenanntewx6.jpg

Holger Mute

did you arrive at LEBL or decided to turn around and land after takeoff as your waypoint that its heading for is XAMUR, so i am assuming your system thinks you are heading there not for rwy 25L at LEBL I may be wrong but thats what your picture suggests

Dave

  • Author

No, I´m arriving LEBL on HDG vectors (online at VATSIM). Take a look at the center of the ND, the small red and the yellow indication close to the aircraft symbol. This area is over the sea. How can that be? Thanks,Holger

Holger Mute

Those are TCAS TAs (Traffic Advisories) You probably either had traffic super close, or it was a squawkbox screw up.

Those are TCAS TAs (Traffic Advisories) You probably either had traffic super close, or it was a squawkbox screw up.
No, they're not, he's right - that's the terrain alarm, and the radar seems to think that there's high ground of some 9,500 feet just ahead of him. Does toggling the TERR on and off & repainting the terrain on your radar do anything? Possibly an error in the terrain database.

Ben Kolbeck

  • Author

Ok thanks, There was no traffic very close to me and I´m using FSINN. After landing at the gate the whole area (display) was colored in red which is normaly of course not the case. I did three flights on VATSIM before and it has never happened before. Weird .....

Holger Mute

I experienced similar problem. It's more than obvious that terrain database is not to accurate. I hope they will fix it, but its not big deal after all, that is VMC condition, you do not really need terrain displayed on ND, if its not the test (as it is). Lj. Prodanovic

[color=#a9a9a9][size=1][size=4][img]http://forum.avsim.net/public/style_images/flags/rs.png[/img][/size] Lj. Prodanovic[/size][/color]
No, they're not, he's right - that's the terrain alarm, and the radar seems to think that there's high ground of some 9,500 feet just ahead of him. Does toggling the TERR on and off & repainting the terrain on your radar do anything? Possibly an error in the terrain database.
Pedantic I know, but it's not radar. It's a terrain database.

___________________________________________________________________________________

Zachary Waddell -- Caravan Driver --

Facebook: http://www.facebook.com/zwaddell

Avsim ToS

Avsim Screenshot Rules

  • Author

In my case it seems to be generelly okay. I did a local circuit at LEBL with ntention to reproduce the problem. This time is was okay as you can see on the pic. Hmm, probaly a kind of memory effect after longer flights..... hmmmm? What do the developers think? Thank you very much,Holger terrain7qqd.jpg

Holger Mute

Hi, today I experienced the same after a long session of flight (EDDL - LOWI, LOWI - EDDL, EDDL - LEPA, LEPA - EDDL). During my last approach at EDDL I had the same issue. I pulled the TERR INHIBIT to not get to confused during final approach. Maybe Holger is right assuming that this effect is due to memory mess up?!?!? Freddy

FREDERIK STEINER

 

Boeing777_Banner_Pilot.jpg

  • Author
I pulled the TERR INHIBIT to not get to confused during final approach.
Where is it located? Thanks,Holger

Holger Mute

I think that the second picture above posted by Holger is correct. The terrain ahead looks like it matches the terrain display on the ND, although I don't see any terrain that would cause a red on the right (maybe I can't see it because the compass is blocking the view). I have used a real terrain display before, and trust me, everything in the ND is displaying correctly in the second picture. I don't know about the first picture. You will have to ask a developer or contact support for that. Hope that helps! Good luck!

Henry C.

captainhenrychen-1.jpg
(Made by MM7)

Where is it located? Thanks,Holger
Hi, it's located at the FOs side right under the DUs. Freddy

FREDERIK STEINER

 

Boeing777_Banner_Pilot.jpg

  • Author

Thanks :)

Holger Mute

Could this be a corrupted configuration file for the EGPWS that's causing this terrain alert while you're flying over the ocean?

Henry C.

captainhenrychen-1.jpg
(Made by MM7)

Create an account or sign in to comment

Account

Navigation

Search

Search

Configure browser push notifications

Chrome (Android)
  1. Tap the lock icon next to the address bar.
  2. Tap Permissions → Notifications.
  3. Adjust your preference.
Chrome (Desktop)
  1. Click the padlock icon in the address bar.
  2. Select Site settings.
  3. Find Notifications and adjust your preference.