Narrative:

Descending via the DSNEE1 arrival into lgb I asked first officer (first officer) if he was going to make the crossing restriction at aaspn. He said yes. ATC then asks if we are going to make the restriction I say 'yes sir'. We missed restriction by 500 ft. ATC did not say anything but we decided to fill out a report.as the captain I should have been more direct with the first officer and command him to descend at a better rate. He did not have the situational awareness to know he was going to be high. I need to make sure the aircraft crosses the restriction at the lowest altitude not somewhere in the middle or the top altitude.

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Original NASA ASRS Text

Title: Air carrier Captain reported missing a crossing restriction after the First Officer assured him they would make it.

Narrative: Descending via the DSNEE1 arrival into LGB I asked FO (First Officer) if he was going to make the crossing restriction at AASPN. He said yes. ATC then asks if we are going to make the restriction I say 'yes sir'. We missed restriction by 500 ft. ATC did not say anything but we decided to fill out a report.As the Captain I should have been more direct with the FO and command him to descend at a better rate. He did not have the situational awareness to know he was going to be high. I need to make sure the aircraft crosses the restriction at the lowest altitude not somewhere in the middle or the top altitude.

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.