cool down guys ...
Guys , take it easy as both of you are right...
Follow the AMM , etc , of course but personnaly , i do not see where there is a problem to use his brain , knowledge and common sense...
Flame , i would say that you are on the right way to become what i call a good Engineer and maybe an MCC Engineer , but be careful , think twice before acting as you are still young and stay modest ...
Happy troubleshooting !