165. The following are major defects in a hydraulic braking system:1° a flexible line that is worn to the second braid or that bulges when under pressure;
2° the level of the fluid in the reservoir of the master cylinder that is lower than one quarter of the maximum level specified by the manufacturer;
3° the brake fluid leaks along the system, excluding oozing, whether or not the service brake is applied;
4° a pedal that has to be depressed several times to pressurize the circuit;
5° a brake pedal that reaches the floor within less than 10 seconds when a force of about 550 newtons is applied;
6° the travel of the brake pedal that exceeds 80% of the total possible travel; and
7° a power brake that does not work. When the engine is off, the power brake is not able to assist the driver for a brake application.