Hey everyoneIm writing this message on behalf of a friend of mine."The following problem has occured to me: Im inboud at CLE for runway 25R and everything is running smoothly, the plane is descending to 4000ft and also holds this attitude (as it should). After that, my indicator tells me that I should start descending yet my plane doesn't do so. On other ILS approaches at different runway it doesnt matter if my altimeter is set on 5000ft. I've logged about 3000 hours on the 737 and this problem has never occured to me before"Any advice on how to solve this problem is greatly appriciated.

By indicator do you mean the VNAV indicator on the ND?The aircraft won't descend below what's indicated on the MCP altitude in VNAV especially if there is an altitude constraint in the FMC.Those other instances you mention may have been in APP mode...? :(

Hey everyoneIm writing this message on behalf of a friend of mine."The following problem has occured to me: Im inboud at CLE for runway 25R and everything is running smoothly, the plane is descending to 4000ft and also holds this attitude (as it should). After that, my indicator tells me that I should start descending yet my plane doesn't do so. On other ILS approaches at different runway it doesnt matter if my altimeter is set on 5000ft. I've logged about 3000 hours on the 737 and this problem has never occured to me before"Any advice on how to solve this problem is greatly appriciated.

Hi there,Do you mean 24R? As i cannot see any runway designated 25R at Cleveland (or .if you do mean 24R, are you sure that you are at 4000ft when you reach CIVAC and already established (or be at 3800ft when you reach CIVAC)?and APP is selected (with 3000 hrs i guess it probably all is, but just checking)regardsLouis