Ever wondered why flight attendants insist on airplane mode? It's not just a precaution; it's about safety and clear communication. A TikTok video featuring an airline pilot, @perchpoint, sheds light on how neglecting this simple step can impact a flight.

Contrary to popular belief, leaving your phone on won't cause a catastrophic system failure or bring the plane down. However, it can significantly disrupt the pilot's headset communication. With numerous passengers on board, even a few active phones can create interference.

When a phone attempts to connect to a cell tower, it emits radio waves. These waves can interfere with the pilot's headset frequency, hindering communication with air traffic control and ground crew.

The pilot recounted a personal experience in San Francisco. After pushing back from the gate and starting the engines, a buzzing sound filled his headset as he contacted ground control. This interference, caused by passengers' active phones, made it challenging to understand instructions.

This buzzing isn't just an annoyance; it's a safety concern. Clear communication is crucial for pilots, especially during critical phases of flight. The pilot's video sparked a wave of responses on social media, with many users expressing surprise at the importance of airplane mode. Some even shared similar experiences of interference from active phones in other professional settings using headsets.

The FAA reinforces this practice, banning active cell phone use during flights due to potential interference with vital aircraft instruments. Activating airplane mode, or disabling the cellular connection, is essential for safe and smooth air travel.