WASHINGTON, Aug 29 (Reuters) - All SkyWest Airlines

flights were grounded on Friday night at the request of

the airline, according to an advisory from the U.S. Federal

Aviation Administration.

SkyWest ( SKYW ) is the largest U.S. regional airline, operating

flights for United Airlines, Delta Air Lines ( DAL ),

American Airlines ( AAL ) and Alaska Airlines.

SkyWest ( SKYW ) did not immediately provide comment on advisory.