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
Domanda 155, Aircraft General Knowledge - Airframe, Systems, Powerplant - ATPL - Airline Transport Pilot license
| A Descent Must Be Initiated To Prevent The Oxygen Masks Dropping When Zc Reaches 14000ft. |
| The aircraft has to climb to a higher flight level in order to reduce Zc to its initial value. |
| DELTA P will rise up to its maximum value, thus causing the safety relief valves to open. |
| The Crew Has To Intermittently Cut Off The Incoming Air Flow In Order To Maintain A Zero Zc. |
