What cabin altitude value triggers the yellow CABIN ALT alert?

What cabin altitude value triggers the yellow CABIN ALT alert?

• A. 7,500 feet
• B. 8,500 feet
• C. 9,000 feet
• D. 8,750 feet

Answer: (B)

Cabin altitude alerts warn you about pressurization status. The yellow CABIN ALT alert is programmed to fire when cabin altitude reaches 8,500 feet. That early warning is designed to give the crew time to don oxygen and begin a controlled descent while investigating the pressurization system, preventing a more dangerous situation if the pressure continues to rise. If conditions worsen, a more urgent red alert would indicate immediate action is required. The other numbers are not the programmed trigger for this yellow warning, so eight thousand five hundred feet is the threshold that prompts the alert.

Cabin altitude alerts warn you about pressurization status. The yellow CABIN ALT alert is programmed to fire when cabin altitude reaches 8,500 feet. That early warning is designed to give the crew time to don oxygen and begin a controlled descent while investigating the pressurization system, preventing a more dangerous situation if the pressure continues to rise. If conditions worsen, a more urgent red alert would indicate immediate action is required. The other numbers are not the programmed trigger for this yellow warning, so eight thousand five hundred feet is the threshold that prompts the alert.