Tech #1 was on top of a drilling machine inspecting the engine. Tech #2 was on the ground at the truck looking for a tool. Tech #1 yelled for tech #2. Tech #2 ran over just as tech #1 was falling. Tech #2 reached out and grabbed tech #1 enough to slow EE's fall but not keep EE from hitting the ground. Tech #1 hit the ground head first then the L side of EE's body hit the ground.