Newps wrote:


Jose wrote:



IF the controller fails to assign an altitude to maintain when giving
the approach clearance umpty ump miles out, I presume the existing
altitude assignment remains valid until the aircraft is established,
in this case until SENNA, the start of the heavy black line. Yes?


No. That's why the controller is required to state the altitude. Once
cleared for the approach the pilot may descend to the initial approach
altitude.

I didn't see the initial question here, but I think you are wrong. the
controllers are required to say it because in may cases (as it appears
here) pilots make mistakes and think they can descend when in fact they
are not on any segment. You cannot descend until established on a
segment.