Are Planes Safe Right Now? How to Understand Flight Disruptions.

You should expect the unexpected while flying, but few disruptions should provoke serious concern, aviation experts say.

Smoke in the cabin. A tire blowout. A cracked windshield. No shortage of problems can affect a flight, fueling traveler anxiety and contributing to thousands of daily delays and cancellations around the world.

But for all of the frustration and alarm such events cause, it can be difficult to interpret and understand their severity. Here’s how aviation safety experts say travelers should think about disruptions when they occur.

Several alarming air travel incidents have made headlines in recent weeks — a sharp plunge toward an ocean, an unnerving wobble that damaged the tail of a plane and an aborted departure after an apparent engine fire.

But the most common mishaps and malfunctions, even if hair-raising, are not typically severe, experts said.

A hydraulic leak, for example, is a familiar occurrence that pilots take seriously, but it is not as disruptive as it may sound. That’s because planes have backup hydraulic systems, which are used to power equipment like the landing gear, brakes, wing flaps and flight controls, allowing planes to take off, fly and land. A plane veering off a runway, in what is known as a runway excursion, makes for captivating video and a possibly terrifying experience for those on board. But it doesn’t necessarily cause significant damage to an airplane or threaten the safety of those on board.

The same is true of the wide range of mechanical or maintenance issues that can come up before takeoff, which might force a pilot to hold a plane at its gate or return to the gate from taxiing. Those incidents are important to understand and address, but they are often minor, experts said.