Latest News

Dallas airports are back to normal after FAA explains the problem that caused the outage

The Federal Aviation Administration (FAA) detailed the telecom failures of a telecommunications provider that caused more than 2,000 flights to be disrupted.

American Airlines, Dallas Fort Worth Airport's largest carrier, reported that more than 100,000 passengers had been affected by telecom problems which began around 2 pm CT on Friday and continued until the morning of Saturday.

American Airlines said that it had to cancel 530 flights on Friday and 160 flights on Saturday. It also had to divert 65 other flights bound for Dallas.

Southwest Airlines, Dallas Love Field's largest carrier, has delayed or cancelled more than 1,100 flights on Friday. Southwest Airlines reported 580 extreme delays Friday.

American Airlines, which has also experienced a delay of more than 350 flights in the last week, warned that there may be additional operational impact.

The FAA stated that "multiple failures of Frontier Communications' telecommunications data service" caused the outage which affected the FAA Dallas Terminal Radar Approach Control (which handles operations at both Dallas airports). Frontier Communications has agreed to sell itself to Verizon Communications, but this deal is not yet complete.

The FAA stated that the oversight by L3Harris contractor failed to ensure the redundancies of the system worked properly.

A Frontier spokesperson said that a third party contractor in Argyle (Texas) accidentally cut the fiber lines of their company, affecting communication systems at Dallas airports. She said that her team coordinated with the FAA, the airports, and worked over night to stabilize the system. As a result, the airports were back up and running by today.

American Airlines, when describing the events leading to flight disruptions, stated that two fiber optic cables were cut on Friday, affecting data supporting FAA radio frequencies, radars and computer systems.

David Seymour (American Airlines' Chief Operating Officer) wrote in an email sent to its employees that the efforts of L3Harris, Frontier and other airlines to restore service were not moving fast enough. He also said the airline would be assessing the financial impact.

Seymour, along with the airline's chief executive officer, Robert Isom had difficulty "reaching leaders at Frontier and L3Harris". "We are extremely disappointed that neither of the providers seems to be in a hurry to resolve this issue," Seymour wrote in an email.

A spokesperson for L3Harris said that a defect in the switching gear of the local telecommunications carrier and a cut fiber affected flights.

The company stated that "L3Harris immediately helped with troubleshooting the impacted circuits, and critical services were returned to the FAA." We will continue to work with the FAA and telecom provider to restore services to full resilience.

In recent years, the FAA has been plagued by a series of technical issues that highlight the fragility of the U.S. Air Traffic Control System. Congress awarded $12.5 billion in July to revamp the system. (Reporting by David Shepardson, Lucia Mutikani and Leslie Adler; editing by Leslie Adler).

(source: Reuters)