You can use the search engines of the Aviation Archaeology website:
http://www.aviationarchaeology.com/src/dbMACR.htm for MACR
http://www.aviationarchaeology.com/src/dbaf.htm for accidents in Allied territory
My advice is to search it by Group numbers, having a list of the units in 9th Air Force should not be difficult.
This will not give you all losses, as aircraft shot down or crashed in operations will not be reported in MACR usually if the crash happens on friendly territory or in sea and the crew or their bodies were all found. And accident reports will not show planes lost or damaged beyond repair in operations, except some that were lost at the start of the mission.