Executive Officer (XO) The  XO  is  the  second  senior  naval  aviator  in  the squadron. He/she is the direct representative of the CO, whose duties are prescribed in  U.S. Navy Regulations. The XO is assisted by various department heads, whose duties vary according to their designated mission and tasks. The executive officer assures that the squadron is administered properly and the squadron commander's orders are carried out. Maintenance Officer (MO) The MO has administrative control over the main- tenance  department  and  is  responsible  to  the  CO  for accomplishing the squadron mission. The maintenance officer  establishes  procedures  and  delegates  authority to  subordinates.  The  MO  reviews  the  decisions  and actions of subordinates and controls personnel assigned to divisions within the department. The MO is assisted by the assistant maintenance officer (AMO). Maintenance Material Control Officer (MMCO) This officer is responsible for the production effort of  the  department.  The  maintenance  material  control officer  (MMCO)  plans,  schedules,  and  supervises  all activities  of  the  production  divisions.  The  MMCO  is responsible for obtaining all supplies needed to support the squadron workload and keeping related records. Aircraft Squadron Departments All    aircraft    squadrons    have    an    administrative department  and  a  safety  department.  Most  squadrons also have an operations department and a maintenance department.    Some    squadrons    have    one    or    more departments in addition to the four already mentioned. Based upon the mission of the squadron, there may be a training,  photographic,  or  intelligence  department.  A department  head  reports  to  the  commanding  officer, and is responsible for the operational readiness of the department.   Department   heads   are   responsible   for organizing and training within the department. Operation,   planning,   security,   safety,   cleanliness   of areas assigned, and records and reports are some of the department head responsibilities. OPERATIONS    DEPARTMENT.—The    opera- tions department (OPS) is responsible for the operational   readiness   and   tactical   efficiency   of   the squadron. Normally, the operations department consists  of  the  logs  and  records,  schedules,  training, communications, and navigation divisions. ADMINISTRATIVE DEPARTMENT.—The administrative department (ADMIN) is responsible for all the administrative duties within the squadron. This department    takes    care    of    official    correspondence, personnel records, and directives. The personnel office, educational  services  office,  public  affairs  office,  and legal office are all part of the administrative department.  The  first  lieutenant  and  command  career counselor work as members of this department. SAFETY  DEPARTMENT.—The  safety  depart- ment   is   responsible   for   all   matters   concerning   the squadron's safety program. Generally, this department is  divided  into  the  ground  safety,  aviation  safety,  and NATOPS divisions. The NATOPS division is responsible  for  ensuring  that  standardized  procedures are followed in operating the squadron's aircraft. MAINTENANCE DEPARTMENT.—The main- tenance    department    is    responsible    for    the    overall maintenance of the squadron's aircraft. The maintenance   department   is   usually   divided   into   six areas.    They are maintenance/material    control,    qual- ity    assurance/analysis,    maintenance    administration, 2-9 ANF0204 COMMANDING OFFICER EXECUTIVE OFFICER AIR OPERATIONS DEPARTMENT SAFETY DEPARTMENT ADDITIONAL DEPARTMENTS ADMINISTRATIVE DEPARTMENT MAINTENANCE DEPARTMENT Figure 2-4.—Typical aircraft squadron organizational chart.