Cargo Loading Manuals. These manuals have been prepared for selected cargo-type aircraft. They provide instructions on authorized procedures for loading,  securing,  and  unloading.  All  typical  loads (ground  equipment,  troops,  engines,  etc.)  and  other assigned  transport  missions  are  covered  and illustrated. Most cargo loading manuals are subject to controls identical to NATOPS. In fact, for aircraft that do not have separate cargo loading manuals, the information can normally be found in the applicable NATOPS flight manual. MAINTENANCE MANUALS Maintenance manuals contain instructions for the effective use and support of weapons systems or equipment. These instructions include, but are not limited to, troubleshooting, installation, removal, and repair of system components. General  Engineering  Series Manuals (01-1A Series) The general engineering series manuals cover standard aviation maintenance practices that apply to all aircraft rather than to a particular aircraft. These publications  serve  as  useful  training  tools,  and  they prevent duplication of standard practices within other manuals. Aircraft Maintenance Instruction Manuals (MIMs) Aircraft  MIMs  are  prepared  on  a  systems maintenance  concept.  They  appear  in  two  basic formats,  conventional  and  work  package.  The  older conventional  manual  specification  required  that  the coverage reflect both organizational and selected intermediate maintenance for contractor-furnished equipment (CFE). The more recent, task-oriented work package manuals cover organizational-level maintenance  only.  (Both  conventional  and  work package formats for technical manuals were covered earlier in this chapter.) Work Unit Code (WUC) Manual WUC manuals are provided for each model of aircraft. They are identified by a -8 in part III of the NAVAIR publication number. For example, NAVAIR 01-F14AAA-8  is  the  WUC  Manual  for  the  F-14 Aircraft. There are WUC manuals provided for every type of aircraft and support equipment. The WUC manual is used as a maintenance aid and recording guide in conjunction with the Maintenance Data  Systems.  It  identifies  assigned  system-related equipment codes pertaining to various servicing and maintenance functions. These codes are used to record maintenance information into an automated data base. The information is processed to produce management reports that are used to determine material failure analysis and supply statistics, as well as maintenance and equipment design improvements. Weight and Balance Data Manual, NAVAIR  01-lB-40 The weight and balance data manuals are used jointly  with  the  U.S.  Air  Force.  They  provide  a standard  system  for  recording  field  weight  and  balance of  certain  aircraft.  The  initial  forms,  charts,  and records contained in the manual are prepared by the original manufacturer before delivery of the aircraft to the Navy. The manual remains with the aircraft during its   entire   service   life.   It   provides   a   means   of maintaining  a  continuous,  current  record  of  the aircraft’s basic weight, balance, and loading data. The records  are  maintained  by  the  aircraft  reporting custodian and overhaul activities. It must be brought up-to-date before transfer of aircraft. The procedures for maintaining this manual are contained in the USN Aircraft  Weight  And  Balance  Control  Manual, NAVAIR 01-lB-50. Crew Station Manuals and In-Flight Maintenance   Manuals Crew station and in-flight maintenance manuals are designed for large, high-density avionics aircraft with  sophisticated,  computer-controlled,  integrated weapons systems. They provide the operators of the individual stations the capability of monitoring logic analysis and signal flow data. They aid in maintaining mission capability and assist in rapid fault detection, and possible corrective action, while still airborne. Airborne Missiles-Guided Weapons and Target and Drone Manuals Because of the similarity of missiles and drones to aircraft,  these  manuals  are  prepared  to  the  same general specifications as aircraft manuals. However, they  are  tailored  to  missile  and  drone  specific functional application. These manuals cover basic description, theory and troubleshooting, checkout, 2-25