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Home > Exam Questions > ATPL - Airline Transport Pilot Licence > Aircraft General Knowledge - Airframe, Systems, Powerplant > Which precaution applies when using an installed chemical rain-repellent spray system on a cockpit windscreen?

308 - ATPL Question Bank in English - Which precaution applies when using an installed chemical rain-repellent spray system on a cockpit windscreen?

Question 308 - Aircraft General Knowledge - Airframe, Systems, Powerplant - ATPL - Airline Transport Pilot Licence

Use it only on an adequately wet windscreen under the conditions specified by the aircraft procedures; application on a dry windscreen can impair visibility

Apply a concentrated layer to a dry windscreen before any rain begins

Override the metering system and apply as much repellent as possible

If it is inadvertently applied on a dry windscreen, immediately use the wipers to spread it

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