rowling conversion

[mizuki]

i would linke to sugest adding a way to set an upgrade or conversions for auto implmentation on the next c or d check whatever hapend first.  this might be seat changes, conversions, or just adding things like hush kits or winglets.  this would of course not affect the total cost you still pay for them and it should extend the matinance small amount.  ex lets sat i want to add some business class seats to all my 737s i would set it up to convert the seats for each plans on its next c check i still get billed for it and the check is slitly longer for the xtra work