Fleet Readiness Center Southwest (FRCSW) is an American naval aviation repair and maintenance facility based at the NAS North Island complex in San Diego, California.

It was the U.S. Department of Defense's (at the time, the U.S. Department of War) first aviation maintenance and repair facility, making it the birthplace of U.S. naval aviation maintenance.

The largest of six main Fleet Readiness Centers in the US Navy, it provides support to Navy and Marine Corps tactical, logistical and rotary wing aircraft and their components.

[2] Its mission statement is, "We generate readiness through timely and responsive production of engines, aircraft, and components for the warfighter."

FRCSW is the only Navy facility performing overhaul on General Electric LM2500 Marine Gas Turbine engines, which power a large number of the Navy's surface fleet including Spruance-Class, Aegis-Class, and Burke-Class surface warfare ships.