TM 1-1520-240-BD 1-7. TERMS AND DFFINITIONS .  There is a variety of special  terms  and  definitions  used  with  battle-damage assessment  and  repair.    The  reader  should  familiarize himself with the terms in the Glossary before continuing. NOTE Many    of    the    illustrations    in    this manual are in the form of schematics.      They   are   intended   to show the principal features of airframe structure and are not always accurate in scale or detail of design. Features    of    a    structure    are    often enlarged to aid in understanding the instructions    given    in    the    manual. The assessor should have no difficulty  comparing  the  illustrations with    the    airframe    structures    they represent.  However, the assessor is responsible to interpret the illustrations for detail not shown and features not drawn to scale. SECTION II.  BATTLE-DAMAGE ASSESSMENT CONCEPTS 1-8. BATTLE-DAMAGE ASSESSMENT . a. BDR  Assessor.    Trained  assessors  will  assess aircraft    battle    damage.        Their    training,    technical knowledge,  and  the  use  of  ACM/BDR  manuals  are  the foundation  of  the  ACM/IBDR  concept.    Assessment  is used to determine which aircraft need expedient repair, which can be flown with only minor attention, and which cannot be repaired in time to meet combat requirements.    The  objective  is  to  return  the  maximum number  of  aircraft  to  a  flyable  condition.    It  may  be determined  that  aircraft  cannot  be  made  flyable  within time  and/or  manpower  constraints.    In  this  case  they may be source of repair parts. b. Personnel Qualifications. Battle-damage assessors     must     have     a     minimum     aviation     skill equivalent  to  a  MOS  66  series  technical  inspector  and appropriate   67   series   MOS.      Assessors   must   have successfully completed training in battle-damage assessment.      Additional   assessors   may   be   aircraft maintenance  officers  (15T)  and  technicians  (100G  and 151A)  who  have  completed  the  Aircraft  Maintenance Officer Course (Phase II).  They must also be assigned to aircraft maintenance positions. 1-9. ASSESSOR RESPONSIBILITIES. The assessors'    primary    responsibilities    are    to    evaluate damage and determine repairs needed to quickly return aircraft  to  operational  service.    Resources  must  not  be wasted   on   aircraft   which   cannot   be   repaired   within specified   time   limits.      Assessors   will   determine   the requirements    for    and    sequence    of    repairs.        They establish an estimated time to complete repairs by skill. They  also  coordinate  with  the  maintenance  authority  to establish an estimated time of availability. a. AVUM  Level.    At  the  level,  the  assessor  may seek   assistance   from   specialist   on   various   aircraft systems.    However,  the  assessor  is  responsible  for  the assessment     and     recommendations     given     to     the maintenance   authority.      The   maintenance   authority determines the priority for repairs. b. Field Recovery Site.  At the field recovery site, the   assessor   evaluates   aircraft   damage.      He   also recommends repairs to the maintenance authority.  The maintenance   authority   decides   what   repairs   can   be made under the immediate tactical situation. c. Restrictions. The assessor assist the maintenance  authority  in  determining  what  restrictions must be placed on the aircraft because of BDR. d. Repair    Priority.    When    the  assessment    is complete,   the   maintenance   authority   determines   the priority  in  which  aircraft  will  be  repaired  based  on  the assessors' reports. 1-10