BE20 crew reported a CFTT event after descending below the glide path on an RNAV approach. Pilot Monitoring reported being distracted after breaking out and missed the deviation below glide path.

Date: 2024-02 · Aircraft: Super King Air 200 · Phase: approach

Anomalies: deviation-discrepancy-procedural-published-material-policy|deviation-discrepancy-procedural-clearance|inflight-event-encounter-cftt-cfit|inflight-event-encounter-weather-turbulence

Synopsis

BE20 crew reported a CFTT event after descending below the glide path on an RNAV approach. Pilot Monitoring reported being distracted after breaking out and missed the deviation below glide path.

Narrative

I was Pilot Monitoring and my Second in Command (SIC) was Pilot Flying. Upon talking to ZZZ Approach we were initially told to expect the Visual Approach XX. Conditions at the field were marginal due to the ceiling; so my SIC and I agreed to request the RNAV XX instead. We were told to proceed direct initial approach fix and were promptly cleared the approach. On the decent below 9000 we were picking up light icing. After starting down on the Glideslope we broke out into visual conditions at 5200 (1500 AGL). The runway and ground were all clearly visible so I took a moment to evaluate our ice build up. When I looked back at my instruments I saw that we were almost a whole dot low on the glideslope. I immediately told the SIC who began correcting. As he was correcting ATC gave us a low altitude alert and to check our altimeters. I verified the correct altimeter and said we have the runway. He said that he had us insight and confirmed we were cleared to land. Safety of flight was not compromised however we were given the alert from ATC.

Second reporter narrative

While on RNAV XX into ZZZ; I was Pilot Flying. I broke out of the clouds at about 1500 ft AGL. I was fully in VMC and got a dot low on the approach. My Pilot In Command advised I was low and I added power and corrected. As I corrected; Tower advised to check our altimeter as we were showing low. He then said he had us in sight. Safety of flight was never in question but tower advised that we appeared low on final.

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