Singapore Airlines has made a number of aircraft adjustment for flights operating durin the month of March 2016, including Bangkok, Hong Kong and Jakarta. Planned operation as follow.
Singapore – Bangkok SQ978/981 Airbus A330-300 replaces 777-200
Singapore – Hong Kong SQ890/891 Boeing 777-200 replaces A330-300
Singapore – Jakarta SQ956/957 Boeing 777-200 replaces -300/-300ER, SQ968/951 Boeing 777-300 replaces -200