CMDCM(SW/AW) Rachel Costello
Command Master Chief (May 2010 - May 2012)

PERSONAL Master Chief Costello is a native of Kobe City in Hyogo Prefecture, Japan. She completed public schools in Long Beach, California and enlisted in the Navy in May 1984. Upon completion of Recruit and Apprenticeship Training in Orlando, Florida, she reported to U.S. Naval Facility in Newfoundland, Canada as an undesignated Seaman.

ASSIGNMENTS Master Chief Costello was designated and advanced to Yeoman Third Class while enroute to her assignment at Naval Air Station, Miramar in San Diego, California. Her subsequent tours include: Commander, Fleet Air, Western Pacific in Atsugi, Japan; Commander, Amphibious Forces, U.S. SEVENTH Fleet in Okinawa, Japan; Commander, U.S. Pacific Fleet in Pearl Harbor, Hawaii; Commander, Naval Surface Force, U.S. Pacific Fleet in San Diego, California; U.S. Naval War College in Newport, Rhode Island; Office of the Master Chief Petty Officer of the Navy, and the Personal Staff of Chief of Naval Operations in Washington, D.C.

Master Chief Costello's most recent assignment was at Naval Technical Training Center, Meridian, Mississippi, the "Cradle of Administration and Logistic Ratings." As the Senior Military Instructor, she oversaw technical training for 5 ratings (PS/RP/YN/SH/SK) and student pipeline management of over 3,500 Sailors annually. This assignment was highlighted by her selection for the Command Master Chief Program.

AWARDS Master Chief Costello is a graduate of the U.S. Senior Enlisted Academy. She also completed the Command Master Chief/Chief of the Boat Capstone Course and University of North Carolina Advanced Management Program. She is qualified as an Enlisted Surface and Aviation Warfare Specialist and is certified as a Master Training Specialist. Her personal awards include the Meritorious Service Medal, Navy and Marine Corps Commendation Medal, Navy and Marine Corps Achievement Medal and various unit and campaign awards.


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