Mid way in the air, the pilot noted that an engine problem had occurred and deliberated on landing either on Indonesia or return back to Singapore. The latter decision was undertaken as (per reported in the news), Singapore Changi Airport was "better prepared" to handle and manage such incidences thanks to its heavy investment in airport operations and facilities.
While I won't cover much on the details of the emergency landing (since this is already widely reported in all news media and social media platforms), this goes to show the credibility and confidence proper investment, planning, team selection, as well as on going training can make a difference in one's assessment and even in "final judgment" scenarios (such as this typical emergency landing).
Kudos again, to the team at Singapore Changi Airport and the Changi Airport Group!