In 1944, the British Civil Airworthiness Requirements was developed to form the code of the Airworthiness Standards through which the requirements of the Air Navigation Orders and Regulations would be met.

If the aircraft is parked on a slope, make sure that the wheel chocks are in position.

Get a sample of fuel and do a test for water contamination.

The remaining instructions are applicable only to aircraft with fuselage tanks.

Make sure that the temperature of the probe increased to more than 500 degrees℃.

Make sure that the door is flush with the adjacent surfaces.

When you apply hydraulic pressure, make sure that the lever does not touch the stop.

Make sure that the indication on the gauge agrees with the quantity that is in the tank.

If you accidentally spray rain repellent fluid onto a dry windshield, remove the fluid with a solvent.

Operate the aileron through a minimum of two full cycles, to full travel.

Make sure that the indicator light comes on when the blades unfold.