jrtdad

I purchased a number of DC-9 planes (family DC-9), and in Airline Finance > Aircraft Maintenance, under "Douglas" I am charged "Douglas DC-9 (Base Cost) $2,216,649" per month. I later purchased a number of MD-87 planes (also family DC-9, but these are cited as "McDonnell Douglas") and I noticed that I am charged another $2,216,649 per month, also labeled "Douglas DC-9 (Base Cost)" but this time it's under "McDonnell Douglas."

The same issue occurred with DC-10 and MD-11: I had several DC-10 planes and was charged a monthly DC-10 Base Cost under "Douglas," but then when I added some MD-11s (also in the DC-10 family), I was charged a duplicate monthly DC-10 Base Cost under "McDonnell Douglas."

I understand why this is happening, but it seems that the monthly Base Cost should only be charged once, since they are planes in the same family.

Thank you.