Incident at HALIFAX / STANFIELD INTL NS (CYHZ)

2010-06-10: UPDATE A10A0051: An Air Canada Embraer E190 (C-FHNP), departed Halifax for Toronto. During the climb the flight crew advised of a pressurization malfunction. The crew did not declare an emergency; however, they requested and received a clearance to return to Halifax. They carried out a rapid descent to 9000 ft. The aircraft landed without further incident. Prior to the incident flight, the aircraft had been released to service with the number two bleed air system disabled in accordance with the MEL. During the climb, the number one system malfunctioned causing the depressurization. After repairs the aircraft was returned to service.

2010-05-17: ACA611, Embraer ERJ190, enroute from Halifax (CYHZ) to Toronto (CYYZ), in a climb to 22,000 feet reported a pressurization problem and requested clearance to descend and return to Halifax. The aircraft conducted a rapid descent to 9,000 ft. No assistance was required. The aircraft landed safely. TSB Case Closed.