Flight Crew Air Transport Pilot (ATP)
Deviation / Discrepancy - Procedural Published Material / Policy; Inflight Event / Encounter CFTT / CFIT
Air Traffic Control Issued Advisory / Alert
Environment - Non Weather Related; Procedure; Weather
While shooting an approach into DCA Runway 19 LDA Z; Tower informed us that we were low and we received an aural terrain alert from the aircraft. Just before this occurred we broke out above minimums and we were turning to track the river. As pilot monitoring; I did not see a high sink rate or course deviation based on our flight instruments. I responded to the Tower by stating 'We are visual.' We landed and did not have any further issues.
Air carrier flight crew reported receiving a Tower low altitude alert along with an aircraft terrain warning after breaking out above minimums and turning to track the river on the Runway 19 LDA Z approach to DCA.