Who can control the cabin temperature?

The cabin temperature can be controlled by the Flight Attendant 1 (FA1) if permitted by the flight deck. This is typically part of the flight crew's procedures, where FA1 has the responsibility and ability to adjust cabin conditions to ensure passenger comfort during the flight. The need for coordination with the flight deck is essential since they oversee overall aircraft operations and can provide guidance based on the flight's specific needs.

In situations where the crew must respond to passenger requests, maintain a comfortable environment, or address issues such as changes in outside temperatures or malfunctioning systems, FA1’s role becomes crucial. By empowering FA1 to make adjustments, the flight crew can manage cabin conditions effectively while still maintaining safety protocols and communication with the flight deck.

Other options imply that control is limited to specific roles or personnel. While other crew members may have varying authorities depending on the airline's policies and standard operating procedures, FA1's control—given the necessary approval—provides the flexibility needed in managing passenger comfort within the regulatory framework of aircraft operations.