Southwest Airlines Develops Software Fix to Prevent Future Travel MeltdownsThe company is facing a DOT investigation.

Following its disastrousChristmastravel season, which saw the cancellation of 16,700 flights,Southwest Airlinesis testing new software fixes — and facing an inquiry from the Dept. of Transportation (DOT) for "unrealistic scheduling of flights."

CNN reportsthat the airline's existing software system will remain in place. However, changes stemming from Southwest's review include a new command center team, telephone system improvements, and overall improved preparedness for inclement weather.

In a Thursday call withinvestors,Portland Press Heraldreportsthat Southwest CEO Bob Jordan defended the company's systems and operating plans, saying, "Based on what we know at this point, our processes and technology generally worked as designed."

Southwest also announced Thursday that it had a third-quarter 2022 loss of $220 million in revenue. At the same time, Jordan assured investors that issues dogging the airline throughout the holidays won't "ever happen again."

Southwest had many cancellations over the holidays partly because their system requires crew members to call in instead of updating their availability electronically. On Thursday, the company's COO, Andrew Watterston, called that "a problem" and then elaborated, "It wasn't the problem for the situation. It was a symptom of the problem."

According to Jordan, switching to electronic notification will necessitate changes in pilot and flight attendant labor contracts. CNN says Southwest is currently negotiating to replace existing contracts covering various issues, including pay and benefits.

Despite tech failures, thePress Heraldnotes that Bob Jordan said Southwest would shell out $1.3 billion for its upcoming upgrades this year. The "recent disruptions," Jordan said, "will likely accelerate some of our plans to enhance our processes and technology."