Narrative:

Departing flight had X passengers on board; very light on takeoff. No issues on departure but it is a fairly aggressive climb on rxxl to ensure altitude crossings are met. No issues on the initial climbout. Late handoff from ZZZ tower to [departure control] while climbing through 4;000'. I began to level off for the initial assigned altitude of 5;000' but failed to adjust/reduce the power setting. This resulted in my inability to smoothly level off at 5;000'. When we contacted [departure control] they made a reference to our altitude (not level at 5;000') and told us to continue our climb to 15;000'. No other deviations or issues with the safe execution of the flight.cause: not reducing the power setting with a very light aircraft on initial climb out to ensure a smooth level off at lower assigned altitudes. Suggestions: keep in mind aircraft performance given the weather conditions (e.g. Heat; humidity; winds) coupled with the aircrafts weight and handling.

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Original NASA ASRS Text

Title: Air carrier First Officer reported overshooting the assigned altitude during climbout. The pilot described the aircraft's weight as very light due to the small passenger count.

Narrative: Departing flight had X passengers on board; very light on takeoff. No issues on departure but it is a fairly aggressive climb on RXXL to ensure altitude crossings are met. No issues on the initial climbout. Late handoff from ZZZ Tower to [Departure Control] while climbing through 4;000'. I began to level off for the initial assigned altitude of 5;000' but failed to adjust/reduce the power setting. This resulted in my inability to smoothly level off at 5;000'. When we contacted [Departure Control] they made a reference to our altitude (not level at 5;000') and told us to continue our climb to 15;000'. No other deviations or issues with the safe execution of the flight.Cause: Not reducing the power setting with a very light aircraft on initial climb out to ensure a smooth level off at lower assigned altitudes. Suggestions: Keep in mind aircraft performance given the weather conditions (e.g. heat; humidity; winds) coupled with the aircrafts weight and handling.

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.