A321
Flight Crew Instrument; Flight Crew Air Transport Pilot (ATP); Flight Crew Multiengine
Situational Awareness
Deviation / Discrepancy - Procedural Published Material / Policy; Ground Event / Encounter Other / Unknown
General None Reported / Taken
Weather
After touchdown on Runway 25L; the ROPS (Runway Overrun Prevention System) activated commanding 'maximum braking'. Maximum braking was applied and the aircraft easily slowed to a safe speed to exit the runway at the planned exit point. The safe outcome of the landing was not in question during the roll out. The approach to flare was normal and stabilized at 1;000 ft. Flaps full was selected and auto-brakes medium due to a shorter than normal runway. A runway assessment estimated that the required landing distance was 5;798 ft. using our configuration; and the available landing distance was 7;800 ft. (6;840 ft. landing beyond the glideslope). During the flare; the airplane floated and would not settle. We ended up touching down at the end of the desired touchdown zone. A higher than desired flare and shifting winds may have also contributed to the event. When the airplane began to float the airplane should have been allowed to settle firmly onto the runway. During the crew debrief the Captain and I both agreed that the safe outcome of the landing was not in question; but had the aircraft floated longer; we were prepared to execute a go-around. Runway 26 was initially assigned then closed and we were switched to a shorter runway.
Before 1;000 ft. AGL we were at final configuration; on target and glide slope. In the flair the Pilot Flying caught a float to a landing at the end of the touchdown zone. During roll out to exit at G2 we received a ROPS (Runway Overrun Protection System) alert for max braking and the Pilot Flying transitioned from auto brake to manual braking; making the G2 turnoff. Float to a landing at the end of the touchdown zone. If at any point the approach is in doubt go around. Transition from auto brakes to manual braking earlier as the situation warrants.
A321 flight crew reported that a wind shift during final approach resulted in a long landing and activation of the Runway Overrun Prevention System.