bellows of gimbal type expansion joints.

continuously with electricity, whereas anti-icing mats are intermittently heated.

integral tanks.

where integral fuel tanks are located.

glaze Ice.

independently, to ensure that in the event of a malfunction of one system, at least one windscreen has clear visibility.

independently

the flow control tubes.

Ethylene glycol

The overheat protection circuit is defective and should be investigated further.

only when selected by the flight crew.

of ice detection system can be tested with a torque screw-driver.

decreased torque caused by ice formation slowing the rotating wheel and illuminating a warning light in the cockpit.

AC or DC

must be removed before flight.