After this , mopping Scouring up operations were undertaken Action by Allied forces around Sio until March and Madang was captured Conquering in April .

On 13 October 2011 , Airlines PNG Flight 1600 , a Dash 8 regional aircraft on a domestic flight from Lae to Madang , Papua New Guinea , crash-landed Damaging in a forested area near the mouth of the Gogol River , after losing Earnings_and_losses all engine power .