Narrative:

On final approach to apf RNAV (GPS) 5: I accidentally stepped down to 295 ft; which was the lpv da. The MDA or da for LNAV/VNAV was 446 ft. I could not see the ground; and at the same time apf reported a low altitude alert. I reported 300 ft. Simultaneously I realized I had busted minimums and declared a go-around. This was executed normally. I don't recall visibility.

Google
 

Original NASA ASRS Text

Title: A single engine aircraft pilot in an advanced avionics flight deck descended below the APF RNAV GPS 5 LPV DA and executed a go-around after ATC issued a low altitude alert.

Narrative: On final approach to APF RNAV (GPS) 5: I accidentally stepped down to 295 FT; which was the LPV DA. The MDA or DA for LNAV/VNAV WAS 446 FT. I could not see the ground; and at the same time APF reported a low altitude alert. I reported 300 FT. Simultaneously I realized I had busted minimums and declared a go-around. This was executed normally. I don't recall visibility.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.