What was found
(CAN) THE RT STARTER-GENERATOR OF THE RT ENGINE WAS REMOVED DURING SCHEDULED MAINTENANCE. ALSO, REMOVED WAS THE STARTER-GENERATOR MOUNTING ADAPTER TO ALLOW BETTER ACCESS FOR ENGINE MAINTENANCE AND INSPECTION. AFTER REMOVAL, IT WAS FOUND THAT THE MOUNTING ADAPTER WAS CRACKED IN 1 OF THE 6 LUGS COMPLETELY THROUGH. THE MOUNTING ADAPTER ANTI-ROTATION PINS ALSO SHOWED SOME WEAR. TROUBLE IN SEEING THE DEFECT UNLESS REMOVED WAS DUE TO THE MOUNTING ADAPTER LUGS BEING COVERED BY A COOLING SHROUD AND THE INSIDE OF THE ADAPTER IS USUALLY DIRTY FROM STARTER-GENERATOR BRUSH DUST. ACFT TT IS 9586.7. TIME SINCE NEW OF THE ADAPTER IS UNKNOWN. TIME SINCE O/H OF THE ADAPTER, ENGINE TIME.