During approach to the runway, deviation pointers in the course indicators give commands to fly up or down and left or right.

Make sure that the fluid that goes through the tube has no bubbles.

Apply a corrosion inhibiting compound into the affected area to stop the corrosion process.

Use caution to assure that probe is as close as possible to antenna base of panel without touching antenna.

The installation of a split scraper ring is also a temporary repair and should be replaced when the nose landing gear is disassembled for other maintenance or overhaul.

Dents are not permitted if they prevent correcct operation of the parts.

Do not use metallic objects which could nick or damage the uplock spring surface.

There are three classes of structure: primary, secondary and tertiary.

Where the paint is sufficiently soft, remove it with a plastic spatula.

Spray lock mechanisms connecting above mentioned components with the corrosion inhibitor.

Without this modification, it is possible that the service life of this unit will be shorter than usual.