67. If the lube oil scavenge temperature exceeds 300 degrees Fahrenheit on the gas turbine engine shown in the illustration, and reducing power does NOT bring the temperature within limits, the operator should do which of the following

A sustained high lube oil scavenge temperature indicates a critical lubrication or cooling failure that risks turbine damage. Reducing power was ineffective, therefore the engine should be shut down and troubleshooting initiated to prevent further damage.