 Earlier in the day, another Flight 152, Merpati Nusantara Airlines Flight 152, was handled by the same air traffic controller.This led to the controller mistakenly saying "Merpati one five two turn left heading 240 to intercept runway zero five from the right side"; as the wrong call sign was used, the Garuda pilots had no need to absorb these instructions.The controller, on not receiving a response, queried the pilots to get their attention, this time using the correct call sign, "Indonesia 152".