Aircraft Condition

[Karl]

I am puzzled.  I found an aircraft that is 8 years old and has recently completed a D check.  Its condition rating is 60%

How can it be so low after a D check?

What can you do to repair an aircraft in poor condition? 

[groundbum2]

If a plane is flown without A and B checks the condition drops quickly. Also a D check will add a lot to the condition, but only so much, so might not get it to 100%. For example if it was 40%. You could do extra maintenance, but this may well end being a D check. Anyway, it shouldn't matter much, a few more tech delays.

Simon