Cabin pressurisation fault resulted in Lion Air 737 diversion

Indonesia’s safety investigators are probing a pressurisation system problem on-board a Lion Air Boeing 737-900ER that resulted in the aircraft having to make a diversion during a routine domestic flight. The jet already had a record in its maintenance log book that the cabin rate of descend was difficult to control during a previous day flight. The issue was not resolved, but an engineer issued a deferred maintenance item that allowed the aircraft to depart with a single cabin pressure controller. Investigations are ongoing but the National Transportation Safety Committee has called on Lion Air to improve pilot training to ensure understanding of aircraft systems and to follow procedures accordingly. <br/>