海航机械故障返航航班亲历乘客：飞机风挡破裂，20多年头次遇到

Group 1 - Hainan Airlines reported that flight HU492 returned to Brussels due to mechanical failure, originally scheduled to fly from Brussels to Beijing on February 6 [1] - The aircraft safely landed at Brussels Airport after the incident [1] - Passengers reported that the plane was seen releasing fuel during the flight, and the crew communicated effectively about the situation, which helped maintain calm in the cabin [2] Group 2 - A passenger noted that the crew informed them of a cracked windshield, and the captain expressed confidence in handling the situation, contributing to a sense of reassurance among passengers [2] - The atmosphere in the cabin remained calm, with passengers feeling secure due to the captain's announcements [2]