Narrative:

I was pilot flying and well prior to TOD; my first officer and I briefed the seavu arrival with runway 25L. We also briefed the usual last second runway change to 24R. We completed the approach descent checklist well prior to TOD. We were cleared to cross konzl at 17;000 at 280 knots. We started down early and were planning to arrive at 17;000 @ 2 miles early. We were prepared. La center handed us off to socal and passing 18;000 changed our runway to 24R and gave us a speed reduction to 250. I had to click off the autopilot; use full speed brakes and really push it to make the restriction. We crossed konzl 300 feet high. ATC said nothing to us and we landed uneventfully.we understand that our work environment is fluid; and that there are other flights involved; but enough of this. While we pilots appreciate our new arrivals and departures; it would be nice for ATC to leave us alone to do our job; it is frustrating when ATC assigns us one arrival and runway; and a crossing altitude; then changes the arrival; runway; and gives us a speed reduction; just prior to the crossing altitude! Does this make any sense? Yes; I take responsibility for this; and yes; I could have told ATC unable; but as pilots we try to get the job done. Is there any possible way that you could have a serious chat with la center; socal; and den center/approach? La is bad; but den is far worse! Please? Do this for us? I would like to know what their responses are to your questions.

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Original NASA ASRS Text

Title: B757 Captain was issued a speed restriction and runway change just prior to KONZL on the SEAVU2 arrival to LAX and is unable to comply; crossing KONZL 300 feet high.

Narrative: I was pilot flying and well prior to TOD; my FO and I briefed the SEAVU arrival with runway 25L. We also briefed the usual LAST SECOND runway change to 24R. We completed the Approach Descent Checklist well prior to TOD. We were cleared to cross KONZL at 17;000 at 280 knots. We started down early and were planning to arrive at 17;000 @ 2 miles early. We were prepared. LA Center handed us off to SOCAL and passing 18;000 CHANGED our runway to 24R AND gave us a speed reduction to 250. I had to click off the autopilot; use full speed brakes and really push it to make the restriction. We crossed KONZL 300 feet high. ATC said nothing to us and we landed uneventfully.We understand that our work environment is fluid; and that there are other flights involved; but enough of this. While we pilots appreciate our new arrivals and departures; it would be nice for ATC to leave us ALONE to do our job; it is frustrating when ATC assigns us one arrival and runway; and a crossing altitude; THEN changes the arrival; runway; and gives us a speed reduction; JUST prior to the crossing altitude! Does this make any sense? Yes; I take responsibility for this; and yes; I could have told ATC unable; but as pilots we try to get the job done. Is there ANY possible way that you could have a serious CHAT with LA Center; SOCAL; AND DEN Center/Approach? LA is bad; but DEN is far WORSE! PLEASE? Do this for us? I would like to know what their responses are to your questions.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.