Narrative:

During a visual descent to denver; landing south; we were on downwind and cleared for the visual approach. As we planned our descent; the captain entered a lower altitude [than] what I wanted as we were on an open descent. When I noticed the error; I turned the autopilot off and flight directors shortly after. ATC issued an altitude alert during this time. I leveled off; continued the approach visually; and descended once we reached the appropriate descent angle. This resulted in a normal landing. Captain entered an altitude at a midpoint inside the fap (final approach point) by mistake.

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Original NASA ASRS Text

Title: A321 First Officer reported ATC issued a low altitude alert after the Captain entered an improperly low altitude on a visual descent into DEN.

Narrative: During a visual descent to Denver; landing south; we were on downwind and cleared for the visual approach. As we planned our descent; the Captain entered a lower altitude [than] what I wanted as we were on an open descent. When I noticed the error; I turned the autopilot off and flight directors shortly after. ATC issued an altitude alert during this time. I leveled off; continued the approach visually; and descended once we reached the appropriate descent angle. This resulted in a normal landing. Captain entered an altitude at a midpoint inside the FAP (Final Approach Point) by mistake.

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.