Performed service on a Goodman furnace. Customer just moved in to this home. Upon inspection I found the series of operations getting stopped at the gas valve. Ordering a control board. There are multiple points concern for this system. The return duct run is ripped open exposing the inside barrier. There are other duct runs in this condition. This is releasing virtually all the conditioned air temperature into the attic. This is going to cause energy bills to be significantly increased. The drain pan has a good amount of rust and active moisture in the pan. The primary blower is leaking oil. Homeowner wants minimal repair to get up and running and a maintenance plan. Homeowner is aware this is not a permanent fix and additional repairs might be needed to get fully and safely operational.