NAS Corpus Christi, Texas. In 2003, CNET was replaced by the Naval Education and Training Command(NETC). Also located on board NAS Pensacola is Naval Aviation Schools Command (NAVAVSCOLSCOM). This command has the following subordinate schools: Aviation Enlisted Aircrew Training School (AEATS) AETAS is also known as Naval Aircrew Candidate School (NACCS) Naval Aviation Technical Training Center (NATTC) NATTC is composed of "A" schools for training of enlisted personnel in various aviation support disciplines including: ground support equipment operators, aviation ordnancemen, aircraft powerplant mechanics, fixed and rotary wing structural airframe mechanics, avionics technicians, aircraft electricians, aviation command and control electronics maintenance personnel, expeditionary airfield construction personnel, air traffic controllers, flight equipment technicians, enlisted aircrew, and parachute riggers. Courses in these disciplines are attended by both Navy personnel and U.S. Marines. Marines aboard NAS Pensacola training for or teaching courses in the aforementioned jobs belong to Marine Air Training Support Group 23 (MATSG-23), which consists of both Aviation Maintenance Squadron 1 (AMS-1) and AMS-2. Crew Resource Management U.S. Navy and Marine Corps School of Aviation Safety NAVAVSCOLSCOM also previously oversaw Aviation Officer Candidate School (AOCS) until that program's disestablishment and merger into Officer Candidate School (OCS) under Officer Training Command at NETC Newport, Rhode Island in 2007. The Pensacola Naval Complex in Escambia and Santa Rosa counties employs more than 16,000 military and 7,400 civilian personnel. During the 2005 round of Base Realignment and Closure (BRAC), people in Florida and the Navy feared that NAS Pensacola might be closed, despite its naval hub status, due to extensive damage by Hurricane Ivan in late 2004. Nearly every building on the installation had suffered heavy damage, with near total destruction of the air station's southeastern complex. The main barracks, Chevalier Hall, did not reopen until late January 2005, four months after the storm. When the list was released on 13 May 2005, NAS Pensacola and other military bases hit by Ivan in Northwest Florida were not on the BRAC list. Their facilities were rebuilt. In May 2006, Navy construction crews unearthed a Spanish ship during an archeological excavation. It may date to the mid-16th century. The ship remains were discovered during the rebuilding of the base's rescue swimmer school, which was destroyed by Hurricane Ivan. On March 3, 2010 the commander of the base, Captain William Reavey Jr., was relieved of command after a Navy investigation into alleged improper conduct. Reavey was replaced by