A319 flight crew reported receiving a low altitude alert from ATC while on a visual approach.

2023-02 · NASA ASRS report 1976681

Date: 2023-02 · Aircraft: A319 · Phase: approach

Anomalies: airspace-violation-all-types|deviation-altitude-overshoot|deviation-discrepancy-procedural-far|deviation-discrepancy-procedural-published-material-policy|inflight-event-encounter-cftt-cfit|inflight-event-encounter-weather-turbulence

Synopsis

A319 flight crew reported receiving a low altitude alert from ATC while on a visual approach.

Narrative

This narrative is in regard to an approach into ZZZ XXR. I was the PM on Aircraft X ZZZ1 to ZZZ. We were vectored on a right base at 2000 ft. for a visual backed up by the ILS V XXR. Approach initially asked for the visibility into ZZZ to ascertain if visibility was sufficient to proceed with a visual approach. I stated that the visibility was between 7 to 10 NM. We were initially cleared for the ILS V XXR and shortly thereafter my First Officer (FO) Pilot flying (PF) stated they were visual with the field and would like the visual to XXR. I relayed to Approach and we were subsequently cleared for the visual to XXR. Shortly after being cleared for the visual I mentioned that 1500 ft. would keep us within the Class B airspace. Rolling out on final a thin cloud layer had developed; obscuring the field. In an attempt to maintain visual with the field my FO (PF) selected an approximately 1100 FPM rate of descent followed almost immediately by the Airbus altitude horn. At approximately 1500 ft. I realized that the altitude in the window had been rolled down to 100 ft. At which point I (PM) stated 'you're low; level off.' The lowest altitude I noted real-time was approximately 1100 ft. MSL. I then called for a climb to 1500 ft. to re-establish ourselves in the Class B. Within a few seconds of initiating a level off and subsequent climb we received a low altitude alert from ZZZ Approach. After leveling off at 1500 ft. the configuration and remainder of the approach was unremarkable. Weather (marginal conditions for a visual approach); complacency; decision-making; assertiveness. As Captain and PM I should have encouraged the PF to stick with the ILS approach. I also should have been quicker to recognize 100 ft. being set in the altitude paired with a call to climb sooner.

Second reporter narrative

This narrative is in regard to an approach into ZZZ XXR. I was the Pilot flying (PF) on Aircraft X ZZZ1 to ZZZ. We were vectored on a right base at 2000 ft. for a visual backed up by the ILS V XXR. Approach initially asked us for the visibility at ZZZ to verify we had the visibility to proceed with a visual approach. The PM correctly stated that the visibility was between 7 to 10 NM. We were initially cleared for the ILS V XXR and shortly thereafter I stated I had the field in sight and could accept the visual to XXR. The PM let Approach know and we were subsequently cleared for the visual to XXR. Shortly after being cleared for the visual the PM stated 1500 ft. would keep us within the Class B airspace. Rolling out on final a thin cloud layer had developed; obscuring the field and in my attempt to maintain visual with the field and not enter the clouds; I selected an approximately 1100 RPM rate of descent followed almost immediately by the altitude horn. At or below 1500 ft. I was able to remain clear of the clouds and leveled off as the PF called to level off. The PM then called for a climb to 1500 ft. to re-establish ourselves in the Class B; which I corrected for ASAP. Within a few seconds of initiating a level off and subsequent climb; we received a low altitude alert from ZZZ Approach. After leveling off at 1500 ft. and re-establishing our visual status with the field; the remainder of the approach was conducted per standard operating procedures. First; I should have told the PM we would simply continue with the ILS rather than try to accept a visual we had not discussed at that point on the approach. Additionally; when I accepted the visual approach; I should have entered the Class B altitude of 1500.

Source: NASA Aviation Safety Reporting System (public domain). Reports are voluntary submissions and are not verified by NASA.

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