ARMY   TM   9-2805-258-14 AIR   FORCE   TO   38G2-89-21 NAVY   NAVFAC   P-8-614-14E APPENDIX   B MAINTENANCE   ALLOCATION   CHART Section   l.   INTRODUCTION B-1.  Maintenance   Allocation   Chart   (MAC).   This   MAC   assigns   maintenance   functions   in   accordance with   the   Four   Level   Maintenance   Concept. B-2.  Use   of   the   Maintenance   Allocation   Chart,   Section   Il. a.  The   MAC   assigns   maintenance   functions   based   on   the   following   considerations: (1) (2) (3) Skills   available. Work   time   required. Tools    and    test    equipment    required    and/or    available. b.  If   a   lower   level   of   maintenance   identified   in   column   (4)   of   the   MAC   cannot   perform   all   tasks   of   a   single maintenance   function   (e.g.,   test,   repair),   then   the   higher   level   that   can   perform   other   tasks   of   that   function   is   also indicated. c.  Higher   maintenance   levels   are   automatically   authorized   to   perform   maintenance   functions   assigned   to   a lower   maintenance   level. d.  Higher   maintenance   levels   will   perform   the   maintenance   functions   of   lower   maintenance   levels   when required   or   directed   by   the   Commander   who   has   authority   to   direct   such   tasking. e.   Assignment   of   a   maintenance   function   in   the   MAC   does   not   carry   automatic   authorization   to   carry   the related   spare   or   repair   parts   in   stock.   Information   to   requisition   or   secure   parts   will   be   as   specified   in   t   he associated    RPSTL. f.  Normally,   there   will   be   no   deviation   from   the   assigned   level   of   maintenance.   However,   in   cases   of operational   necessity,   maintenance   functions   assigned   a   higher   level   may,   at   the   request   of   the   lower   level,   be assigned   to   the   lower   level   on   a   one-time   basis,   if   specifically   authorized   by   the   maintenance   officer   of   the   higher level   to   which   the   function   is   assigned.   In   such   a   case,   the   special   tools,   equipment,   etc.,   required   by   the   lower level   to   perform   this   function   will   be   furnished   by   the   higher   level   assigned   the   function.   Also,   transfer   of   a   function to   a   lower   level   does   not   relieve   the   higher   level   of   responsibility   for   the   function,   so   the   higher   level   will   provide technical   supervision   and   inspection   of   the   function   being   performed   at   the   lower   level. B-3.  Maintenance   Functions.   Maintenance   functions   will   be   limited   to   and   defined   as   follows: a.  Inspect.   TO  determine   the   serviceability   of   an   item   by   comparing   its   physical,   mechanical,   and/or   electrical characteristics   with   established   standards   through   examination   (e.g.,   by   sight,   sound,   or   feel). b.  Test..    To   verify   serviceability   and   detect   incipient   failure   by   measuring   the   mechanical   or   electrical characteristics    of    an    item    and    comparing    those    characteristics    with    prescribed    standards. B-1