Japan flight crash transcripts show coastguard plane was not cleared for take-off
通信记录显示日本海上保安厅飞机当时未获准起飞

Runway collision between turboprop aircraft and Japan Airlines jet killed five and prompted emergency evacuation
根据通信记录，羽田机场空管允许日航516航班降落在34R跑道上。十秒钟后，空管指示海上保安厅的飞机滑行到跑道边缘的一个等待点。