Today I was approaching ILS rwy 19R at ENGM when I noticed that we are flying way too low. About 2 nm from the runway I was very close to crash into the trees while still flying with ILS app mode with autopilot on. The strange thing is that the PFD showed that i was at the right altitude but the ISFD showed way too low. The "below g/s" lamp also lighted up. I had both nav 1 and nav 2 receivers tuned in and I think that I only had CMD1 on. It felt very strange since I had perfect localizer align. Only the GS was strange. I have "service based failures" on. What do you guys think?Manfred

You can go into the failiures section of the pmdg options in the CDU and see if any failiures are active.

False ILS? (:

There are no false ILS's in the FSX world !Just the odd bit of dodgy nav data.

It was just an uneducated guess.

I have landed the NGX at Aerosoft ENGM and never had a problem there. Is it possible an incorrectly set Altimeter would cause this? Like if you were on BARO instead of Radio and the altimeter was set to the wrong number?Something like this:? http://www.skybrary....f/books/854.pdf

I did set the correct altimeter, I did set the correct ISFD altimeter aswell. Also the incident happened while the autopilot was following the ILS GS which means that it is radio and baro altimeter independent. The only thing showing that I was too low was the ISFD ILS. Everything else was normal.

BTW, why does this thread keep disappearing?

Was your knobs set to BARO or RADIO?

False ILS position or slope angle or your altimeter (master FD side) was set incorrectly.

BTW, why does this thread keep disappearing?

Others have asked that about threads they follow. In each case (so far), the answer is that there's so much activity that a topic can easily dive down several pages in just 24 hours. This seems to make people think their topic/thread of interest is "disappearing." Easiest thing to do is mark "Follow this topic" at the upper right of the topic you want to, well, follow."I forget what that results in, but I think you get an e-mail message to your address of record when there's been an update. If someone else knows more accurately, I hope they chime in.Hope this helps you keep up with stuff you want to know more about.

I did set the correct altimeter, I did set the correct ISFD altimeter aswell. Also the incident happened while the autopilot was following the ILS GS which means that it is radio and baro altimeter independent. The only thing showing that I was too low was the ISFD ILS. Everything else was normal.

This sounds like the autopilot was flying a computed vertical profile and not the ground based glide slope signal. Starting on page 4.20.20 of the FCOM, you'll find a helpful description of the different modes and especially the correct annunciations on the Flight Mode Annunciator for thrust, roll and pitch. Note the significant difference between "G/S" and "G/P" on the pitch side. If you haven't already tried it, re-run the approach, with deliberate attention to selected and displayed modes and see if the situation re-creates or not.

This sounds like the autopilot was flying a computed vertical profile and not the ground based glide slope signal. Starting on page 4.20.20 of the FCOM, you'll find a helpful description of the different modes and especially the correct annunciations on the Flight Mode Annunciator for thrust, roll and pitch. Note the significant difference between "G/S" and "G/P" on the pitch side. If you haven't already tried it, re-run the approach, with deliberate attention to selected and displayed modes and see if the situation re-creates or not.

You might be right, Maybe the airplane never intercepted the glideslope and continued on the VNAV path. Although I seriously doubt it. I am pretty sure that I had the diamond and not the other sign on the right side. I will take it into consideration next time and I will definitely look through those FCOM pages. Thank you

Others have asked that about threads they follow. In each case (so far), the answer is that there's so much activity that a topic can easily dive down several pages in just 24 hours. This seems to make people think their topic/thread of interest is "disappearing." Easiest thing to do is mark "Follow this topic" at the upper right of the topic you want to, well, follow."I forget what that results in, but I think you get an e-mail message to your address of record when there's been an update. If someone else knows more accurately, I hope they chime in.Hope this helps you keep up with stuff you want to know more about.

I have searched for it just now and I couldn't find it even after I went back to the second november (and CTRL + F). The thing it that it appears for about an hour after something is posted and then it vanishes. Although I could find it if I pressed "start date" on the forum thread sorting thing.

False ILS position or slope angle or your altimeter (master FD side) was set incorrectly.

As said, Altimeter was set correctly. I don't understand what you mean with false ILS position or slope angle but I did not use the HUGS.

Was your knobs set to BARO or RADIO?

Since I was following the ILS glideslope it doesn't matter. It was Baro.

I flew again to ENGM but this time on a different approach and runway and this is what happened.As you can see I have captured the G/S but for some reason it is way to low. If you look at the ISFD I am way below the G/S and so says the "below G/S" warning to the left but the aircraft still tries to fly down into the ground...I should mention that I have downloaded the latest ENGM afcad but it shouldn't make any difference since I tried to fly the ILS with the stock FSX 737 and it followed it perfectly.Why is the aircraft doing this?Manfred

Check your instruments...On the photo your not following the G/S.... you're following the G/P! also your still in LNAV and not on the VOR/LOCregardRichard Oberwinkler

Check your instruments...On the photo your not following the G/S.... you're following the G/P! also your still in LNAV and not on the ILS...regardRichard Oberwinkler

I feel like such an idiot. Thanks for clearing that out. But can you explain me what the glide path is? It shows like the regular ILS rhombus on the PFD but it is a path and not a slope. I did press ILS on the FMC so why would the aircraft follow something else instead of a ILS when I press APP button on the MCP?Manfred