When a crew smoke detector alert is unannounced, what is the recommended sequence of actions?

• A. Notify passengers to ignore alarm.
• B. Land at the nearest airport immediately without assessment.
• C. Initiate a rapid assessment, locate the source if safe, stabilize the area, and follow emergency procedures as directed by the Purser and Captain.
• D. Do nothing until a checklist is issued.

Answer: (C)

When a crew smoke detector alert is unannounced, the priority is to respond with a rapid, controlled assessment and follow the established emergency procedures under the Purser and Captain. Start by quickly evaluating the cabin and nearby areas to determine if there is actual smoke or fire and what the immediate risk is. If it’s safe, locate the source to gauge the level of threat and identify any actions needed to mitigate it. At the same time, stabilize the area to prevent the situation from worsening—this can include isolating the affected zone and directing passengers away from the risk. Throughout, follow the emergency procedures as directed by the Purser and Captain, coordinating with the flight deck and other crew to determine the next steps, such as using protective equipment or fire suppression resources and deciding on diversion or landing if required.

Telling passengers to ignore the alarm, or landing immediately without assessment, or doing nothing until a checklist is issued would ignore the safety checks and timing that protect everyone on board.