Narrative:

On approach to ZZZ the captain pilot flying (PF) called for 'flaps 3; landing checklist'. I responded by saying 'flaps 3'. I select flaps 3; reached for the checklist and started to accomplish the landing flow and checklist. He then requested 'flaps full'. With my eyes on the checklist; I noticed thrust started to increase. Which took my attention away from the checklist for some period of time.the captain asked if we had activated and confirmed the approach. I checked the mcdu perf appr page to verify. It had been. I continued landing checklist. I then noticed that the flaps were in the '3' position on the display. To confirm; I inquired about landing 'flaps 3' or 'full'? I was reminded; 'flaps full'.both of us looked at the lever position which appeared to be in the full position; which did not agree with the display. I moved my hand to flap selector to make sure it was in the full detent and put pressure on the lever and the flaps moved flaps full. We continued completed the checklist and landed VMC.on landing and at the gate I discussed that we changed configuration under 1000 feet contrary to sops.I was distracted with the thrust increase followed by the request to verify that we activated and confirmed the approach. This took me off sequence and led to the late configuration. The time it took also delayed the completion of the landing flow and checklist.the correct course of action in our case clearly defined in the sops; I should called 'unstable; go around' and then perform the go-around.

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Original NASA ASRS Text

Title: A319 First Officer reported not confirming the flap handle was in the flap detent until below 1000 feet.

Narrative: On approach to ZZZ the Captain Pilot Flying (PF) called for 'Flaps 3; Landing Checklist'. I responded by saying 'Flaps 3'. I Select Flaps 3; reached for the checklist and started to accomplish the Landing Flow and Checklist. He then requested 'Flaps Full'. With my eyes on the checklist; I noticed thrust started to increase. Which took my attention away from the checklist for some period of time.The Captain asked if we had activated and confirmed the approach. I checked the MCDU PERF APPR page to verify. It had been. I continued landing checklist. I then noticed that the Flaps were in the '3' position on the display. To confirm; I inquired about landing 'Flaps 3' or 'Full'? I was reminded; 'Flaps Full'.Both of us looked at the lever position which appeared to be in the full position; which did not agree with the display. I moved my hand to Flap Selector to make sure it was in the full detent and put pressure on the lever and the flaps moved flaps full. We continued completed the checklist and Landed VMC.On landing and at the gate I discussed that we changed configuration under 1000 feet contrary to SOPs.I was distracted with the thrust increase followed by the request to verify that we activated and confirmed the approach. This took me off sequence and led to the late configuration. The time it took also delayed the completion of the Landing Flow and Checklist.The correct course of action in our case clearly defined in the SOPs; I should called 'Unstable; Go Around' and then perform the go-around.

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.