Japanese authorities say the coastguard plane involved in a fatal collision at Tokyo airport on Tuesday night was not cleared for take-off.
Five of the six people on board that plane were killed when it collided with a Japan Airlines Airbus A350 coming into land, engulfing the planes in flames.
All 379 people aboard the Airbus escaped the burning wreckage.
A newly released transcript of air traffic control instructions just before the crash confirmed the Airbus was cleared to land.
It shows the coastguard plane was told to taxi to a holding point, contradicting what the coastguard plane's captain told investigators.
Travel Talk Magazine digital editor Dan Lake spoke to Charlotte Cook.