MTU 20 V 4000 M93 x Operating Instructions Manual page 114

Evaluation of findings and further measures
The findings in the start phase of oxidation discoloration and heat discoloration are similar. A thorough
investigation and compliance with the above evaluation criteria allow an unambiguous evaluation. To
avoid unnecessary disassembly work, it is recommended that another inspection be carried out after
further operation of the engine.
114 | Task Description | MS150048/04E 2013-07