An aircraft with a pressurized cabin is settled at its cruise level.During the flight, a malfunction of the pressure controller is detected by the crew and the cabin altitude rate indicator reads -200ft/min.Given that:DELTA P: Differential pressure Zc: Cabin altitude

Question

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

QuizVDS · Accepted Answer

DELTA P will rise up to its maximum value, thus causing the safety relief valves to open.

QuizVDS · Answer

A Descent Must Be Initiated To Prevent The Oxygen Masks Dropping When Zc Reaches 14000ft.

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The aircraft has to climb to a higher flight level in order to reduce Zc to its initial value.

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The Crew Has To Intermittently Cut Off The Incoming Air Flow In Order To Maintain A Zero Zc.

Id 155 - ATPL - An aircraft with a pressurized cabin is settled at its cruise level.During the flight, a malfunction of the pressure controller is detected by the crew and the cabin altitude rate indicator reads -200ft/min.Given that:DELTA P: Differential pressure Zc: Cabin altitude