Accessing Script on instated prefab

I have a C# script in unity which is instantiating a prefab. (This works fine). Once This happens I need to access an array, stored on a script, on that prefab.

 public static void roomBuilder(Vector3 loc)
     {
         if(roomcount < 20)
         {
             GameObject newRoom;
             int roomNum = (int)(Random.Range(0, staticRoomArray.Length));
             newRoom = Instantiate (staticRoomArray[0]) as GameObject;
             Component value = newRoom.GetComponent<Room_adder>();
             Debug.Log(value.doorArray[0]);
             newRoom.transform.position = (newRoom.transform.position) + loc;
         }
     }

This is the function Instantiating the prefab.

The instantiated prefab has a script with a "public GameObject[] doorArray;".

Any thoughts on how to make this work?