Q. (Re- Question 1362) Regarding pausing the Amidah to listen to krias hatorah -Isn’t it true that the Chazon Ish and Rav Shlomo Zalmen Auerbach maintained that one may not stop his Shemona Esrei in the middle  to listen to Krias HaTorah.

A. Indeed, Piskei Teshuvos (104: n. 108) and others quote this two sources not to be mafsik for krias Hatorah in the middle of the amida, however, Horav Shlomo Miller’s Shlit’a opinion is that on mincha on a taanis since the reading is much shorter while one is slowly reciting the amida, he may stop between the brochos and listen quietly to the Krias Hatorah; while being careful not to stop and be mafsik a stretch longer that the time it would take to recite the complete amida. (Mishna Berura 65: 3, see also s.104). One may however, while they call another reader to the Torah, continue with the amida.

Rabbi A. Bartfeld as revised by Horav Shlomo Miller Shlit”a