The pilot continues to be responsible for obstacle and terrain clearance.
2.
Ng said an air traffic controller warned of a " possible infringement of terrain clearance ."
3.
Excellent terrain clearance performance under 250 KEAS is achieved by deploying the main parachute immediately after exiting the cockpit.
4.
The first officer expressed concern that he did not know their position and what the terrain clearance was for the area.
5.
A periscope antenna facilitates increased terrain clearance without long transmission lines, while permitting the active equipment to be located at or near ground level for ease of maintenance.
6.
The flight path was a corridor wide, the width required for safe terrain clearance in the event of formation breakup or the loss of drafting position by a helicopter.
7.
This rule has undoubtedly contributed much to the safety of airline travel, as flights under those rules specify altitudes and routes that must be followed and that have been predetermined to provide terrain clearance.
8.
Another factor in the collision was the subtle limitations on visual perception relating in part to the proximity of the mountain slope not far below both aircraft, requiring both pilots'attention to maintain suitable terrain clearance.
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