| You are conducting a borescope inspection of the compressor section of a GE LM2500 gas turbine. In stage four, you see a slight tilt to one blade and the blade platform is raised higher than the other blades. What could be a cause of this condition and what would be your course of action? |
| A) Condition could be the result of blade root failure. Engine should be taken out of service until condition can be evaluated. |
| B) FOD damage could cause this condition. Engine can be operated at full load until next scheduled maintenance. |
| C) Metal fatigue could cause this condition. Engine can be operated but gas generator speed should be reduced. |
| D) Ice damage could cause this condition. Blade tilt should be corrected using special tool provided, then engine will be safe to operate. |
