Part 3/9:
As the plane lined up for takeoff, the crew attempted to start the left engine, a simple process that quickly devolved into confusion. Standard protocol required the ground crew to manually start the engine using a specialized tool. However, the ground crew opted for an unapproved method, which set off a chain of events that would lead to catastrophe.
Unbeknownst to either crew or passengers, the left engine was now malfunctioning due to this improper start. With the final bags loaded and the aircraft fully fueled, the flight began its journey, seemingly without consequence.