TM 55-1510-219-10 CHAPTER 8 NORMAL PROCEDURES Section I.  MISSION PLANNING 8-1.  MISSION PLANNING. Mission   planning   begins   when   the   mission   is assigned   and   extends   to   the   preflight   check   of   the aircraft.      It   includes,   but   is   not   limited   to,   checks   of operating  limits  and  restrictions;  weight,  balance,  and loading; performance; publications; flight plan; and crew and  passenger  briefings.    The  pilot  in  command  shall insure compliance with the contents of this manual that are applicable to the mission. 8-2.  CREW BRIEFINGS. A crew briefing must be conducted for a thorough understanding   of   individual   and   team   responsibilities. The   briefing   should   include,   but   not   be   limited   to, copilot, crew chief, and ground crew responsibilities and the   coordination   necessary   to   complete   the   mission most efficiently.  A review of visual signals is desirable when    ground    guides    do    not    have    a    direct    voice communications link with the crew.  Refer to Section VI for crew briefings. Section II.  OPERATING PROCEDURES AND MANEUVERS 8-3.  OPERATING PROCEDURES AND MANEUVERS. This   section   deals   with   normal   procedures   and includes    all    steps    necessary    for    safe    and    efficient operation of the aircraft from the time, a preflight begins until  the  flight  is  completed  and  the  aircraft  is  parked and secured.  Unique feel, characteristics, and reaction of  the  aircraft  during  various  phases  of  operation  and the techniques and procedures used for taxiing, takeoff, climb,  etc.,  are  described,  including  precautions  to  be observed.        Only    the    duties    of    the    minimum    crew necessary  for  the  actual  operation  of  the  aircraft  are included. 8-4.  CHECKLIST. Normal procedures are given primarily in checklist form  and  are  amplified  as  necessary  in  accompanying paragraph    form    when    a    detailed    description    of    a procedure   or   maneuver   is   required.      A   condensed version of the amplified checklist, omitting all explanatory   text,   is   contained   in   the   Operator's   and Crewmember's    Checklist,    TM    55-1510-219-CL.        To provide   for   easier   cross   referencing,   the   procedural steps  are  numbered  to  coincide  with  the  corresponding numbered steps in TM 55-1510-219-CL. 8-5.  SYMBOLS DEFINITION. Items    which    apply    only    to    night    or    only    to instrument  flying  shall  have  an  "N"  or  "I",  respectively, immediately preceding the check to which it is pertinent. The  symbol  "O"  shall  be  used  to  indicate  "if  installed." The   star   symbol indicates   an   operational   check contained in the performance section of the condensed checklist.        The    asterisk    symbol    "*"    indicates    that performance of the step is mandatory for all thru-flights. The  asterisk  applies  only  to  checks  performed  prior  to takeoff.  Placarded items appear in upper case. 8-6.  BEFORE EXTERIOR CHECK. 1. Publications-Check  DA  Forms  2408-12,  -13,  - 14,  and  -18,  DD  Form  365-4,  locally  required forms    and    publications,    and    availability    of operator's manual (-10) and checklist (-CL). 2. Oxygen system-Check as required. a. Oxygen supply pressure gages-Check. b. Supply control lever (green)-ON. c. Diluter control lever-100%  OXYGEN. d. Emergency    control    lever    (red)-Set    to TEST  MASK  position  while  holding  mask directly   away   from   face,   then   return   to NORMAL. e. Oxygen mask-Don and adjust. f. Emergency    control    lever    (red)-Set    to TEST MASK position and check mask for leaks, then return lever to NORMAL. 8-1