And since when has it aircrew's job to do an engineers job. How can a pilot with no formal enginering training, and perhaps newly qualified on type, make engineering decisions that on occasion a highly experienced engineer has to go to great depth on. Some times the most innocuous sign can lead to much greater faults that require greater levels of experience than almost any pilot has. I have seen planes at the end of a day that have been subjected to pilot turnrounds and sometimes it isn't pretty, cuts in tyres seem to be a favourite area of ignorance. Engineers are not just glorified car mechanics, our training takes longer than pilots ( 3-4 years just for basic trade and then maybe another 2 yr for licences and on top of that extensive type training and on going recurrent) , just remember we make decisions on a daily basis that keeps you guys safely in the air, and that is us "getting on with our jobs"!!!