Engines 1 and 2 supply hot air to their related wings.

Make sure that you can hear the flight deck conversation in the headphone.

NOTE: If the onboard software package was lost, please supplement the package.

Remove the detergent with a clean cotton wiper that is moist with water.

Identify the component with a code to help you to install it again correctly.

In this configuration, a different test procedure is mandatory.

To find the middle point, divide the measured clearance by two.

Measure the depth of the dent with a straightedge and feeler gauges

A dedicated tool is necessary for the installation of the unit.

The radius of the curve must be a minimum of 8 mm.

The precision of the gauges must agree with the applicable quality standard.