Have searched for an answer to the without success.
When looking at the "financial estimate" being a 1 week forward looking estimate of income/cost for a given aircraft, maintenance shows as A check cost + B check cost. However isn't the aircraft costing 1 x A check and 0.25 x B check per week... I am not B checking it every week...
... is this a bug or I am missing something obvious (which has happened before!)
I've notice the same thing.
The weekly cost estimate for a plane consider B check done every week.
I'm not sure if the amount is effectly deducted every week. The real income is always higher than the estimate.
Unfortunately there isn't a report of the income/expenses of a single plane. So it is not possible to check.