B737 Next Generation Undifferentiated
Flight Crew Multiengine; Flight Crew Instrument; Flight Crew Air Transport Pilot (ATP)
Flight Crew Last 90 Days 107; Flight Crew Total 1992; Flight Crew Type 328
Distraction; Situational Awareness
ATC Issue All Types; Deviation / Discrepancy - Procedural Published Material / Policy; Inflight Event / Encounter Wake Vortex Encounter
General None Reported / Taken
Human Factors
We were told to expect the RNP approach to 34L from our initial check in. On downwind we were told to expect the visual instead. We had many speed changes. The final speed change was to expedite our slow down to 170. The First Officer called for gear and flaps as necessary. It didn't look like he was going to level at the final approach fix altitude so I was watching that and the plane in front of us. He never called for the landing checklist and I never thought to do it. I completely lost situational awareness. The First Officer ended up getting a sink rate that was quickly corrected. The plane in front of us gave us moderate wake turbulence. We debriefed and decided this was a failure on both of us to maintain situational awareness.
B737NG Captain reported they failed to complete the landing checklist because of distractions and loss of situational awareness.