B737-800
Flight Crew Air Transport Pilot (ATP)
Situational Awareness; Workload
Deviation / Discrepancy - Procedural Published Material / Policy; Inflight Event / Encounter Unstabilized Approach
General None Reported / Taken
Human Factors
Not completely configured by 1;000 feet; elected to land flaps 25. Configure earlier.
The aircraft [was] crossing GREKO on a visual backed up by the ILS 22 [and] was configured for the approach and landing and required only the final flaps to be set. At approximately 1;300 feet I called 'flaps to go' and asked to set the flaps. The Captain elected to leave the flaps at 25 rather than the planned 30. At 1;000 feet I asked again to set the flaps to 30; the Captain stated leave the flaps at 25; passing through 500 feet AGL on the proper vertical path the 'too low flaps' warning sounded continuously; I suggested that we go-around. Instead of going around the pilot flying was distracted by the warning and not going around. The pilot flying decided to continue the approach and to land; the landing was uneventful and we exited the runway at Y off Runway 22 after a normal touchdown at about 1;200 feet down the runway. I will demand a go-around and if need be take control of the aircraft earlier in the approach; as the distraction at 500 feet made for an unsafe place to have a control exchange by force.
B737-800 flight crew reports landing with flaps 25 instead of the planed flaps 30 due to aircraft not fully configured at 1;000 feet AGL. At 500 feet a 'too low flaps' GPWS warning is issued and the First Officer suggests a go-around but the Captain elects to land.