HOUSTON – A passenger’s attempt to enter the cockpit on a Delta Air Lines flight departing Houston’s Hobby Airport early Wednesday is the latest example of a problem aviation officials say never fully returned to normal after the pandemic: unruly behavior in the skies.
Delta Flight 2557 had just taken off for Atlanta around 5:25 a.m. with 85 customers and five crew members on board when pilots declared an emergency.
“Roger, Delta 2537, emergency,” the pilot said over air traffic control audio.
When asked the nature of the emergency, the pilot responded, “We had a passenger get up and try to access the cockpit.”
The Boeing 717 returned to William P. Hobby Airport, where law enforcement met the aircraft.
“Can you coordinate and have security standing by, as well as paramedics, please,” the pilot said. “[He’s] in cuffs in the back of the aircraft, but he did assault another passenger, so we’d like that passenger checked out.”
A Delta spokesperson said the customer approached crew members and other passengers but “did not make contact with or attempt to access the flight deck.”
“The safety of our customers and crew is paramount, and Delta has zero tolerance for unruly behavior. We apologize to our customers for this experience and delay in their travels,” the airline said in a statement.
The Houston Police Department said the individual was detained and transported for a mental health crisis. No charges have been filed and no arrests have been made. The investigation remains ongoing.
The flight later re-departed and is expected to arrive in Atlanta about 90 minutes behind schedule.
While no breach occurred, aviation experts say any attempt to approach the cockpit mid-flight is treated as a serious security concern.
“The answer is zero. Never had anybody come close to that event whatsoever,” said Richard Levy, a retired airline captain, when asked if he had experienced a similar situation in his 41-year career.
“It is a cardinal sin,” Levy said. “That is an absolute no-no to come up to the flight deck in flight.”
Unruly passengers still elevated
Federal Aviation Administration data show unruly passenger incidents surged during the COVID-19 pandemic, largely driven by disputes over mask mandates.
Although numbers have declined from their peak, they remain above pre-pandemic levels.
This year, the industry is on pace for more than 1,500 reported unruly passenger cases.
Levy says today’s passengers are far less likely to sit back if someone threatens the safety of a flight.
“If you threaten the flight crew or the aircraft or the safety, there will be people on the aircraft who will find that incorrect, unsafe, and they will do something about it,” he said.
But aviation security is not dependent on passenger intervention alone.
A new physical barrier in the cockpit
In response to post-9/11 security concerns, Congress directed the FAA to require an additional layer of protection between passengers and the cockpit: a physical secondary barrier.
The barrier is designed to be deployed whenever the cockpit door is opened during flight, for example, for restroom breaks or meal service, creating a buffer zone between the cabin and flight deck.
Under a final FAA rule signed in 2023, new transport-category passenger aircraft manufactured two years after the rule’s effective date must be equipped with the installed physical secondary barrier.
The FAA estimates the cost at about $35,000 per aircraft for purchase and installation, not including additional training and related expenses.
The rule’s purpose is straightforward: slow down any unauthorized attempt to reach the cockpit long enough for the reinforced flight deck door to be closed and locked.
“I think anything, any safety measure, Gage, that is provided by the manufacturer and or the airline as an after effect to help prevent unruly behavior towards the flight crew, the flight attendants and or the pilots is important and necessary and it’s only going to get better as time goes on,” Levy said.
The secondary barrier is not retroactive and applies only to newly manufactured aircraft used in passenger-carrying operations under federal rules.
There has not been a successful cockpit breach on a U.S. commercial flight since the Sept. 11, 2001, terrorist attacks.
Still, Wednesday’s incident at Hobby underscores why the layers remain in place, from hardened cockpit doors to air marshals and now secondary barriers, even as most flights operate without incident.
For many travelers at Hobby, the system still inspires confidence. Of 31 people surveyed at the airport Wednesday, 30 said they feel safe flying.
Federal statistics show the odds of dying in a car crash are about 1 in 93. By comparison, the odds of dying in an airplane crash are about 1 in 11 million.