United Airlines announced Wednesday that it's moving its grounded fleet of 737 Max jets to Arizona for storage.

The airline, which has 14 of the planes, currently stores the jets in Houston and Los Angeles. United said it is moving the planes because of weather issues in Houston and construction and space issues in Los Angeles.

The Boeing plane has been grounded since mid-March following two fatal crashes. The plane must be recertified by the Federal Aviation Administration before it can rejoin airline fleets.

"United is fully committed to the safe movement of all our MAX aircraft and we have clearance from the FAA to conduct these ferry flights," a United spokesperson said.