During which scenario should a pressure check for brake systems be performed?

A pressure check for brake systems is performed prior to brake inspections to ensure that the system is functioning correctly and safely. This step is crucial because it helps identify any leaks or malfunctions in the brake system before any detailed inspection or maintenance is undertaken.

Conducting a pressure check ensures that the brakes have the proper hydraulic pressure required for optimal operation, and it allows technicians to verify the integrity of the system as they prepare to inspect the components closely. Ensuring that the brake system is pressurized to the correct levels before beginning an inspection can prevent potential safety issues during the maintenance process.

Performing a pressure check before refueling, during flight checks, or after tire rotation does not align with the standard procedures outlined for brake inspections, making those scenarios less appropriate for checking the brake system pressure.