assembly,  disassembly,  maintenance,  servicing  and handling. Airborne Missile Weapons Assembly Checklists Airborne  missile  and  weapons  assembly checklists are an abbreviated, unclassified procedural reference. These checklists can be used as a guide for step-by-step assembly of missiles and weapons. They are provided as a convenient “line maintenance” reference document. The checklist manual is used as a backup in the event of difficulty. Structural Repair Manual (SRM) The SRM is used as a guide in making structural repairs to the airframe. It contains general information on  airframe  sealing,  control  surface  rebalancing, general shop practices, damage evaluation and support of  structure.  and  a  description  of  the  structure. Descriptions of structures are made by using indexed illustrations and repair drawings. SRMs  contain  specialized  repair  information required by maintenance personnel to determine the extent of aircraft structural damage. It also contains instructions for performing a permanent or onetime flight repair. Basic  structural  repair  data,  common  to  all aircraft, is released in a general engineering series manual,  General  Manual  for  Structural  Repair, NAVAIR  01-1A-1.  Aircraft  structural  repair  manuals are prepared by the original design manufacturer. They contain aircraft specific information and are considered a supplement to the general series (01-1A) manuals discussed earlier. 2-26 The SRM for most new aircraft is published in two volumes  because  the  volumes  are  used  by  different activities.  Volume  I  is  used  by  all  levels  of maintenance. Volume II supplements volume I, and contains information for use at intermediate- and depot-level  facilities. You can identify the SRM by a -3 in the manual code.  The  two  volumes  are  further  identified  by  an additional  dash  number;  for  example, NAVAIR-01-75PAA-3-1. This is the code for volume I of the SRM for the P-3A. Each volume of the SRM is divided into sections. Section I contains genera! information. Each of the other sections contains more specific information. These sections cover portions of the aircraft, such as wings, tail, fuselage, landing gear, and engines. There is also a section that covers typical repairs. The scope of SRMs is being revised to expand and complement their application. The manuals are to be published  as  four  volumes:  (1)  structural  repair,  (2) corrosion control, (3) nondestructive inspection, and (4) an illustrated parts breakdown (IPB). Before you attempt to use the SRM, you should read  the  introduction  in  volume  I.  It  includes information on how to use the manual. NOTE: Since the formats of SRMs differ, the instructions  on  how  to  use  a  particular  manual  also may differ from other SRMs. POWER PLANT MANUALS (02 SERIES) Power   plants   are   reciprocating   engines,   jet propulsion engines, jet propulsion/turboshaft engines, rocket-type jet engines and Auxiliary Power Units (APU).  Organizational  (installed)  maintenance  is covered in the power plants volume of the MIM that is  prepared  by  the  aircraft  designer.  However, intermediate  and  depot  (uninstalled)  information  is defined in specialized engine publications prepared by the  engine  manufacturer.  These  manuals  include information on intermediate servicing and repair, complete engine repair (CER), overhaul, and an IPB. In  some  cases,  CER  is  supported  by  a  deck  of Complete  Engine  Repair  Requirements  Cards (CERRCs). Unique to engine systems is a Three-degree, Gas Turbine  Engine  Repair  Program  at  the  intermediate maintenance level. Under this program, each engine intermediate maintenance manual defines specific engine maintenance actions as either first-, second-, or third-degree   functions.   Specific   guidelines   and responsibility  information  are  provided  in OPNAVINST  4790.2. In most power plant manuals, the maintenance and service instructions manual is identified by a -2 or a -502 in part III of the NAVAIR publication number.  These  manuals  contain  all  the  information necessary  for  you  to  routinely  service  and  maintain the  engine  models  covered.  They  also  include instructions   for   troubleshooting,   dismantling, reassembling,  and  testing. Under the NAVAIR publication numbering system, the overhaul instructions manual is identified by a -3 or a -503 in part III of the publication number. This manual