[Franek Grabowski]

Kari
The answer is hidden in the German damage categories as quoted by Christer Bergstroem.
I agree with Norbert that Ueberholung has nothing to any damage.

Below 10 %: Minor damage that can be repaired by the aircraft’s ground crew.
10 % - 24 %: Medium damage that can be repaired through small repair works at the unit.
25 % - 39 %: Damage that requires a major overhaul at the unit.

Those are not listed in Abgang as they can be repaired within the unit.

40 % – 44 %: Damage to that requires whole replacements of landing gears or other systems, such as hydraulic systems.

I am not sure with this one.

45 % - 59 %: Severely damaged aircraft where large parts of the aircraft needed to be replaced.

Listed in Abgang, to be repaired at specialised works etc.

60 % - 80 %: Write-off category. Certain parts could be used as spare parts for other aircraft.
81 % - 99%: Totally destroyed, crashed on German-controlled area.
100 %: Totally lost, crashed or disappeared over enemy-controlled area or over sea.

Listed in Abgang.