I recently signed a new maintainance contract with a better company. But I didn’t see a difference in the maintainance ratio of the aircraft. So my question is does maintainance provider changes do anything and if they do how long till I see a difference.
I dont think it works that way.
The ratio is static - your ratio depends on your schedule. The maintaince provider makes the difference.
For example, while Helvetic only needs just 100.00% ratio, to keep your planes flying - a slightly worse competitor (african etc.) would need a ratio on maybe 150.00%, to keep them flying.
Does it make sense?
Hi Banff,
nope, whatever your maintenance provider is, when the maintanence ratio is >=100% your aircraft will be maintained in condition. That’s why it exists 
I mean I changed to a company of same quality but the company is more efficient. Will the maintain ratio change?!
Not sure about that. When I started playing the game, I did not notice that you could switch provider.
With a ratio below 130.00%, my planes would drop below 50% condition, and be cancelled?!
Hi,
when the ratio is >= 100% your planes will be maintained over the week. Depending on your schedule the ratio might drop to below 50% anyway, f.e. when your schedule has only one maintenance window (the status of your plane is 100% after maintenance, but drops with every flight). Try to include a smaller window every day and it will work.
One of the tutorial challenges is to keep the maintenance ratio between 100%-200%. That is the ratio i maintain. This means that my planes won’t go below 85% condition, remember the condition of the aircraft has a large influence on the image of the company. When you have an old plane, it will most likely need more maintaining or else its condition will degrade very fast.