737 NJ autoland

[Guest matchouz]

HELLOI was following an autoland just a short while ago... Everything went well, until the approach mode switched to VOR LOC mode, and the plane stopped following the glide slope. I needed to land the plane manually... Just a short while before landing, i had the "Approach VREF not verified" or something like that appearing on the FMC. I checked everything, and it didn't seem to me there was anything wrong.Does anybody know why i had this problem and what to do?thanksmat

[basa 0]

Can you explain in more detail your autoland procedure?The FMC message should be "Approach vref not selected".In that case you must open the approach page of your FMC and select a landing flaps configuration (flaps 30 or 40 for the 737).That will give you a Vref speed (a reference speed for landing, normally Vref+5 is a good one to set in your MCP). After that selection you will have in the speed tape of your PFD the signs: up,1,2,5,10,15,25,30,40 that will help you in the flap deployment procedure for approach.Jose Luis.

[basa 0]

Well, a little self-correction to my last post, if you have selected flaps 30 for landing in the FMC, you will get on the PFD speedtape:up,1,2,5,10,15,25,vrefJose Luis