Complex sentence: In the early 1980s, the system acquired 245 new Flyer E901A/E902 trolley buses, although coach 2937 was irreparably damaged by an electrical fire in 1987 bringing the total number of Flyer 900s down to 244.
Split into simpler sentences: In the early 1980s, the system acquired 245 new Flyer E901A/E902 trolley buses. E902 No.2937 was irreparably damaged by an electrical fire in 1987, reducing the total number of trolley buses to 244.