Originally Posted by
Tarq57
I should point out that the above list of "signs" is not from a professional engineering standpoint- it's just what I've learned over the years, and should be considered "lay" opinions.
For a proper list of signs, best check with an engineer, or maybe there's an engineer on PPrune that can verify/debunk/add to it.
A lot of things like this are found using common sense. If you are wondering if it is normal for a part/wing/skin to look like that, ask an engineer. One that I can add for most Cessnas is: have a close look at the flap tracks. If the top inside edge is flattened or shows indentations, that's a clear sign of a significant flap overspeed situation.