Only a professional aircraft appraiser can come up with the true deduction for damage history, and he or she would have to see the aircraft, the logbook entry, and FAA Form 337, if one was issued, to make the evaluation. One publication suggests deducting 5 to 25 percent for damage history, but those numbers don't mean much. Furthermore, as we'll see, the effect of damage history can vary greatly depending on what kind of aircraft we're looking at. Paint and interior can also be tough appraisal issues. I suppose it depends on who's looking at it.
Interiors are similar.
I once looked at an older Turbo-Commander that still had its original interior. It was in very good condition, but had a dated look because the fabrics and colors were not what are generally considered stylish today. The fabrics were not ripped or stained, and the carpet showed very little wear. But I felt like I was looking at the interior of a 1957 Chevy. Airframe time has a direct effect on the value of an aircraft.