SRL for [delivered]: Two of the 757 - 200s are new aircraft to be [delivered] to American Trans Air , the main subsidiary of Amtran Inc. , in December 1991 and January 1992 .
ARG-1: new aircraft | ARG-2: to American Trans Air , the main subsidiary of Amtran Inc. | ARG-M-TMP: in December 1991 and January 1992