Narrative:

Today I was the pilot flying to jfk. We briefed the approach prior to descent and discussed the gusty wind conditions and high cross wind (320/24g33) for landing runway 4R. The initial portion of the approach was uneventful and we were slowing and configuring appropriately. Approaching the FAF; tower told us to slow to final approach speed as we were gaining on the aircraft in front of us. I asked the first officer (first officer) to set ref speed and called for flaps 25 which was the next flap selection (we had planned a flaps 30 landing). I took a quick look for the aircraft in front of us and asked the first officer if she saw it. Shortly after that tower provided another wind call and I asked the first officer if she heard the updated winds and ask her for the new crosswind component. I heard the 1000 foot call and called 'stable' and set the missed approach altitude without checking to see that the mechanical landing check list was complete. At 500 feet the first officer made the standard call outs. Shortly thereafter the GPWS stated 'configuration flaps' I quickly looked at the flaps and saw 25. First officer called for a 'go around' which we executed. Uneventful go around and landing followed. In hindsight; I was distracted by the gusty wind conditions and traffic call. While I understand what happened; those two events should not have precluded me from focusing on the task at hand which was to ensure the aircraft was in the proper landing configuration and all checklists complete. No excuses. The GPWS provided us the warning which allowed us to make a timely missed approach. Pay attention to detail especially during critical phases of flight. Don't let outside influences distract you from completing checklists.

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Original NASA ASRS Text

Title: B-737 captain reported executing a missed approach following a flap configuration warning.

Narrative: Today I was the pilot flying to JFK. We briefed the approach prior to descent and discussed the gusty wind conditions and high cross wind (320/24G33) for landing runway 4R. The initial portion of the approach was uneventful and we were slowing and configuring appropriately. Approaching the FAF; Tower told us to slow to final approach speed as we were gaining on the aircraft in front of us. I asked the First Officer (FO) to set ref speed and called for flaps 25 which was the next flap selection (we had planned a flaps 30 landing). I took a quick look for the aircraft in front of us and asked the FO if she saw it. Shortly after that tower provided another wind call and I asked the FO if she heard the updated winds and ask her for the new crosswind component. I heard the 1000 foot call and called 'stable' and set the missed approach altitude without checking to see that the mechanical landing check list was complete. At 500 feet the FO made the standard call outs. Shortly thereafter the GPWS stated 'configuration flaps' I quickly looked at the flaps and saw 25. FO called for a 'go around' which we executed. Uneventful go around and landing followed. In hindsight; I was distracted by the gusty wind conditions and traffic call. While I understand what happened; those two events should not have precluded me from focusing on the task at hand which was to ensure the aircraft was in the proper landing configuration and all checklists complete. No excuses. The GPWS provided us the warning which allowed us to make a timely missed approach. Pay attention to detail especially during critical phases of flight. Don't let outside influences distract you from completing checklists.

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.