Senior Vice President of SBS Transit Corporate Communications Tammy Tan said the water leakage in an MRT train was "due to an electronic failure in the air-conditioning control system". That's bull and you don't need an engineering degree to know it.
Air conditioners work by removing moisture from the environment to give us a feeling of comfort. The water extracted from the air during operation falls down the cooling coils and drains into the base and channels or passages to the discharge outlet. Air conditioners "sweat" when the air filters are dirty or the discharged channels clogged. In other words, assuming the system was installed correctly in the first place, it is an issue of poor maintenance.
The on-going 6 hour disruption for the Dolby Ghaut to Harbour Front NEL is attributed to a connecting cable of the overhead power supply located south of Outram Park station which had snapped. No doubt it is due to another failure of the maintenance system, or the lack there of.
The real worry is the falling e-clip, last detected at the Clementi section. Manufacturer PANDROL introduced their e-PLUS System in 2000 as a retrofit system for older ‘e’ clip sleepers installed in locations with very high lateral forces, such as the curving section at Clementi when centrifugal forces kick in. SMRT is still using the old ‘e’ clips.
The SMRT spokesperson with the fancy job title said the "indoor rainfall" fault has since been rectified. Let's see how she comes up with another story when a train flies off the track.