Engine Inspection (1) Serviceability limits for turbine blades are much more stringent than are those for turbine nozzle vanes. (2) A limited number of small nicks and dents can usually be permitted in any area of a turbine blade. Regarding the above statements, a. both No. 1 and No. 2 are true. b. neither No. 1 nor No. 2 is true. c. only No. 1 is true.