Incident at 52 north 50 west

2010-01-05: BAW177, Boeing 777-200, enroute from London (EGLL) to New York (KJFK), at 38,000 ft., at 52 North 50 West, declared an emergency due to pressurization problems. The flight crew advised that the pressure was controllable manually and no descent was necessary. The flight continued to destination. TSB Case Closed.

2010-01-28: UPDATE TSB: A10A0002: BAW177, a British Airways Boeing 777-236ER, registration G-YMMJ, was en route from London to New York when the flight crew declared an emergency due to a pressurization system malfunction. The crew then advised that the pressurization was controllable utilizing the manual system and that descending to a lower altitude was un-necessary. The aircraft exited Canadian airspace without further incident.