B757 Undifferentiated or Other Model
Flight Crew Air Transport Pilot (ATP); Flight Crew Multiengine; Flight Crew Instrument
Flight Crew Last 90 Days 181; Flight Crew Type 3729
Situational Awareness
Conflict NMAC
Flight Crew Took Evasive Action
Human Factors
While on final to Runway 16L we received a traffic alert quickly followed by a traffic RA. I was hand flying; on LOC and on glideslope just outside of the LEETS FAF. We descended below glide path due to the RA and once clear of conflict we returned back on glide path. I was able to see the Aircraft X which caused the RA. The aircraft was on visual to Runway 16R and came within about 300 ft. of ours. From what I could see Aircraft X may have overshot the final to Runway 16R which likely caused the RA. We told Tower and continued on to a normal landing.
Approaching WAHUU; just about 3miles from the fix; Approach gave us a heading of 220 expedite descent to 8000 ft. and intercept LOC Runway 16L. Passing through 9000 ft. we called the rwy and were cleared to 7000 ft. hdg 200 cleared visual Runway 16L. The FO (First Officer) armed the Approach mode and LOC and Glide Slope was 1.5 dots high when we received a traffic alert. It was yellow and off our right wing and behind us. The FO had the traffic in sight looking at the 4-5 position of our acft. Just outside of Leets at about 7500-7800 ft. we go the RA; 'Descend Descend.' He was hand flying and complied with the RA. I switched to tower and told them we were responding to an RA with traffic in sight. I never saw the TCAS get less then 300 ft. above and to the right. The FO felt he may have overshot a little. By the time we were over LEETS the RA was over. Normal approach and landing was accomplished. It is the noteworthy that conflict acft landed on Runway 16R and was taxiing on WB at a high rate of speed and cleared WB to F before we made it to CS. He landed behind us on Runway 16R and we landed on Runway 16L and he arrived at WB and F before we arrived at F and CS.
B757 flight crew reported an NMAC occurred with a commercial aircraft on approach to DEN.