The chief operating officer of Allegiant Air is resigning.
KTNV-TV reports that 52-year-old Steve Harfts is leaving after serving in the position for about a year.
He first joined Allegiant in December 2014.
His resignation follows questions about the airline’s safety record and several incidents involving emergency landings and mechanical issues.
The airline recently ordered additional training for pilots and dispatchers after a plane had to land because it was low on fuel.
A former pilot is also suing the airline for firing him after he ordered an emergency evacuation when he saw smoke was detected in a jet engine.
Allegiant says in a statement that the leadership change will allow the airline to refocus on operational needs.
The Las Vegas-based airline offers nonstop flights to 52 destinations.