B737 Next Generation Undifferentiated
Flight Crew Instrument; Flight Crew Multiengine; Flight Crew Air Transport Pilot (ATP)
Flight Crew Last 90 Days 270; Flight Crew Type 10779
Situational Awareness
Inflight Event / Encounter Wake Vortex Encounter; Inflight Event / Encounter Unstabilized Approach
Flight Crew Executed Go Around / Missed Approach
Weather; Human Factors; Environment - Non Weather Related
Approach was stable and uneventful through below 500 ft AGL. At that point; I let the aircraft dip below glideslope to capture three red PAPI. As the aircraft passed through 100 feet AGL; I noticed four red PAPI and began to adjust pitch and power. As the threshold neared; the aircraft began to be affected by the previous arrival's wake; and required control inputs as aircraft crossed the threshold to maintain path and centerline. These inputs were more significant than any inputs on the approach and began rather suddenly.My last look as we crossed the threshold had airspeed on target. I began to increase the back pressure for the flare; but the aircraft did not respond as I expected; never arrested descent; and contacted the runway before planned; resulting in a hard bounce.With the power still up; the resulting bounce was high; and I immediately called for a go around. Go around was accomplished and subsequent landing was uneventful. Thankfully; we later heard from Maintenance the aircraft inspection showed all ok.
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B737NG flight crew reported a hard landing and subsequent go-around occurred following a wake turbulence encounter just before touchdown.