Complex sentence: In 1988,2 years prior to accident, the cable car went under major reconstruction with the head engineer Vakhtang Lejava, originally cable car used 3 supporting towers.
Split into simpler sentences: In 1988,2 years prior to accident, the cable car went under major reconstruction under the lead of the head engineer, Vakhtang Lejava. Originally the cable car used 3 supporting towers.