can the adaptore board be used with airwire

My concern is the availability of replacement gearboxes. You have been out of stock for about a year. it seams that this item has a high failure rate, usually it is the gear that attaches to the drive shaft. You made sure that  in other models u have remanufactured
replacement either the original or improved parts IE: the Connie the 4-4-0 & 2-6-0.
it seams that to produce just the one gear the one that attaches to the driveshaft .. would not be a overly expensive endeavor you
have the tooling.
This one gear appears to be the weak link in the design and supplying just this gear can keep our truck running.

Thanks for reviewing