What should be done if the smoke alarm stops after the smoke clears?

When the smoke alarm stops after the smoke clears, notifying the Pilot in Command (PIC) via interphone is crucial. This action ensures that the flight deck is fully aware of the situation and can take appropriate measures if needed. The PIC needs to understand what occurred to assess any potential safety implications and make decisions about the aircraft's operations.

While other actions may be relevant, such as notifying passengers about the situation or performing follow-up inspections, the primary responsibility of a flight attendant in this scenario is to communicate directly with the PIC. This keeps the chain of command informed and allows for a coordinated response to any issues regarding safety on board. The PIC has the most significant authority and will guide further actions based on the details provided.