Southwest Airlines has extended its grounding of the Boeing 737 Max fleet until September 2.
In a statement, Southwest said: " We continue to await guidance from Boeing and the Federal Aviation Administration (FAA) on the impending 737 Max software enhancements and training requirements. We are encouraged by the reported progress and proposed path forward for returning the aircraft to service, and we remain confident that, once certified by the FAA, the enhancements will support the safe operation of the Max."
The carrier becomes the second US airline to extend the grounding of 737 Max aircraft following American Airlines earlier this week announcing it will continue its grounding until September 3.
In April, Southwest revised its flight schedule by removing the Max through Aug 5.
The revision will remove roughly 100 daily flights from the airlines schedule.