Swedish-based operator West Atlantic has modified the ‘before take-off’ checklist for its Boeing 737s after an incident in which an aircraft departed with an incorrect configuration.

The step was included on the before taxi, takeoff procedure and after takeoff checklists but was missed ... As the Boeing 737 reached 13,500 feet (4114m), a cabin altitude warning horn sounded ...

Roughly 19 months after the Boeing Co (NYSE: BA) 737 Max was grounded due to safety concerns, regulators have finally once again cleared the aircraft for takeoff. What Happened? On Friday ...