大理在撞上 Key Bridge 前 10 个小时因维护而停电。 Dali had power blackout during maintenance 10 hours before crashing into Key Bridge.
美国国家运输安全委员会（NTSB）报告称，与巴尔的摩弗朗西斯·斯科特基大桥相撞的货船“达利”号在事故发生前10小时，在停靠期间曾两次断电。 The US National Transportation Safety Board (NTSB) reports that the cargo ship Dali, which collided with the Francis Scott Key Bridge in Baltimore, had suffered two power blackouts while docked, 10 hours before the crash. 该船再次失去电力，撞上了桥梁的一根支撑柱，导致桥梁倒塌。 The ship lost electrical power again and crashed into one of the bridge's supporting columns, causing the bridge to collapse. 美国国家运输安全委员会的调查重点是该船的电气系统。 The NTSB is focusing its investigation on the ship's electrical system.