Large Transport; Low Wing; 2 Turbojet Eng
Flight Crew Air Transport Pilot (ATP); Flight Crew Multiengine; Flight Crew Instrument
Communication Breakdown; Situational Awareness
ATC Issue All Types; Conflict NMAC
Flight Crew Took Evasive Action
Human Factors
I feel lucky to be submitting this report. We were on final on a visual approach to XXL. We were outside of ZZZZZ. We had been handed over to Tower but before being handed off; Approach told us to expedite our descent to 3000 ft from 4000 ft. I didn't understand because I saw no other traffic around except for the a/c (Aircraft) we were following. I believe it was also approach that asked us to slow to our final approach speed. We did both. As we configured and slowed and changed frequency to Tower; we received a TA (Traffic Advisory) from the TCAS (Traffic Collision Avoidance System). Traffic Traffic. I looked at the display and saw a target. It read +02 and right on top of us. I couldn't comprehend it. I thought; where did that come from? There had been nothing on the display except the aircraft in front of us. Then it read +01 and right away to 00; inside of the triangle representing our plane on our display. I was waiting for a RA (Resolution Advisory); telling us to descend; but never another peep from the TCAS. I was looking outside to the right because the numbers on our triangle made it look like it was possibly on that side. I couldn't see anything. The jump seater was also looking and couldn't see it either. The F/O (First Officer) finally saw it. He commented; it was close! I remember waiting to hear some scrapping. Feeling it was a helicopter or a false target. I asked Tower if we had any traffic near us. He responded an aircraft had overshot XXR. We weren't told anything about him. I feel he must have either been cleared for the wrong runway or was preceding to the wrong runway. If this were a PRM (Precision Runway Monitor) approach there would have been a breakout well before this point. HOW DOES AN AIRCRAFT GET THIS CLOSE TO ANOTHER AIRCRAFT TODAY?????? We continued for a normal landing. I really do need some answers though. Why no RA from the TCAS? Was the other plane getting a RA? If not; why not? Why not a word from ATC? Why were we both at 3000 ft? This felt very very close. I mean; in our triangle; with 00 ft!!!!Sloppy airmanship. Poor vectoring. Wrong runway identification. NONE BY US. ATC paying better attention. Like I said; a PRM would have had a breakout. We had nothing. Better flying skills by the regional pilots. A TCAS that works.
Air carrier flight crew reported a near mid-air collision on approach to landing.