Design a plan for communicating with passengers when the information from the ground keeps changing.

I would design that communication plan around source control, message discipline, and update cadence. First, the crew needs a clear rule about which information is considered official for passenger communication at that moment. If ground information keeps changing, passengers should still hear one crew-aligned message, not five versions.

Second, I would use a standard update format: what is confirmed, what is still pending, what passengers should do right now, and when the next update will come. That structure keeps the message useful even when the news itself is incomplete. It also reduces the temptation for crew members to fill silence with guesses.