The Southwest Airlines Pilots Association issued a call Wednesday to hold a strike authorization vote starting May 1.
The strike authorization vote will be the first ever held by SWAPA. All votes are to be tallied at the end of May.
The vote comes after nearly three years of negotiations between the airline and the pilots. Negotiations are due to resume Tuesday, according to Reuters news agency.
SWAPA also cited the carrier’s Christmas-season meltdown and particular concerns about information technology and scheduling.
“Our airline just suffered a loss of $825 million due to outdated technology and procedures.