Jump to content

REFS Minimums Warning occurring at 120 ft and 20 ft AGL


KirkR
 Share

Recommended Posts

Looking for assistance to identify why minimums would be reported lower than expected.  Scenario is:

KMBS ILS 23
No ATIS - used std BARO 29.92. (note also had same result @ KDTW using the ATIS reported altimeter)
Set RA and RA in REFS config (noted that no warnings occur when setting to BARO, but I believe RA radar alt is the correct one to use generally?)
Following images and video show more supporting detail.

Are both BARO and RA operational in the simulation (per comment above)?
Is there supposed to be a visual indication of the decision height on the PFD when these are configured?

Supporting visuals/video:

RA3.thumb.jpg.5634eaabffb1820c138a9ba894e3e323.jpg

RA2.jpg.89d9078485b163c42146a523f760a4ea.jpg

RA1.jpg.54c9e29cc8f84cb2724e3964f0eef946.jpg

Be sure to use settings to maximize resolution for the video.  HD should be available by the time anyone pulls this up.

As always, thank you.

 

 

Edited by KirkR
Link to comment
Share on other sites

You should use baro minimums unless the approach specifies the use of RA minimums (see a CAT II or III ILS for an example). 
 

For the KMBS ILS 23, you should set baro minimums of 870’ in the reference window. When the aircraft descends below that altitude, the minimums alert will sound. 
 

The reason your minimums alert went off at 5 feet is because the minimums reference was set to 5.

 

A3364E1E-23D3-4139-8DE6-BFBC936A8153.jpeg

71221CAF-37FF-4075-B6EB-0161D85FD6E8.jpeg

Edited by rjb4000
Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
 Share

  • Recently Browsing   0 members

    • No registered users viewing this page.
×
×
  • Create New...