"It is to be put directly under the flight path for the instrument approach" to the airport, he said.

He had never flown an instrument approach and knew little about how to do it.

You are cleared for instrument approach one seven left.

He was making an instrument approach to the airport in heavy fog.

A third landed at 8:16 following an instrument approach to runway 19.

This allows aircraft to arrive on the ground much sooner than if the full instrument approach is flown.

Find the enemy, launch missiles, fly home to an instrument approach.

As of 1 June 2012, the instrument approaches have been removed from the official documentation.

Without an instrument approach the provision of a viable air service is considered impossible.

Most instrument approaches allow for landing in conditions of low visibility.