EMB ERJ 145 ER/LR
Flight Crew Multiengine; Flight Crew Air Transport Pilot (ATP); Flight Crew Instrument
Flight Crew Total 3750
Aircraft Equipment Problem Critical
Air Traffic Control Provided Assistance; Flight Crew Diverted; Flight Crew Took Evasive Action
Aircraft
While in cruise at FL370; the flight crew noticed the cabin altitude started to increase. A few seconds later; they noticed their ears starting to pop in relation to the changing cabin pressure accompanied with a whistling sound. The cabin altitude continued to increase and reached the point where the aural warning was alerted. The CA told the FO to put on his oxygen mask and that we would be starting an emergency descent. The CA then informed the FA of the situation and instructed her to put her mask on as well. The flight crew performed the rapid cabin depressurization and emergency descent checklists. The CA then informed the dispatcher of the situation via ACARS and notified him of the diversion. The crew performed a successful emergency landing and taxied the aircraft to the gate. The cause was due to the aircraft's pressurization system failure to maintain cabin pressure.
EMB-145 Captain reported pressurization system failure during cruise.