TM 1-1510-223-10 5. Handle  -  Press  button  and  lift  to OPEN     position     then     latch     in place. 6. Handle access door - Secure. 7. Door support rod - Attach one end to cargo door ball stud (on forward side of door). 8. Support rod detent pin - Check in place. 9. Cabin door sill step - Push out on and   allow   cargo   door   to   swing open. Gas springs will automatically open the door. 10. Door support rod - Attach free end to  ball  stud  on  forward  fuselage door frame. (2) Closing the cargo door. Avoid   side   loading   of   the   gas   springs   to prevent damage to the mechanism. 1. Door  support  rod  -  Detach  from fuselage    door    frame    ball    stud, then  firmly  grasp  free  end  of  rod while  exerting  downward  force  to overcome    the    pressure    of    gas spring   assemblies,   then   remove support    rod    from    door    as    gas spring  assemblies  pass  the  over- center position 2. Cargo   door   -   Pull   closed,   using finger  hold  cavity  in  fixed  cabin door step. 3. Handle    access    door    (upper    aft comer   of   door)   -   Unfasten   and open. 4. Handle   -   Press   button   and   pull handle   down   until   it   latches   in closed position. 5. Handle access door - Secure- 6. Handle access door (lower forward comer of door) - Unfasten and open. 7. Handle   -   Move   to   full   forward position. 8. Safety   hook   -   Check   locked   in position by pulling aft on handle. 9. Handle access door - Secure. c. Cabin    Door    Annunciator.        As    a    safety precaution, two illuminated MASTER CAUTION annunciators     in     the     glare     shield     and     a     steadily illuminated CABIN DOOR amber caution annunciator on the caution/advisory panel indicate the cabin door is not closed and locked.  This circuit is protected by the two, 5-ampere   circuit   breakers,   placarded   ANN   PWR   and ANN IND located on the over-head circuit breaker panel (fig.  2-7). d. Cabin   Emergency   Exit   Hatch.      The   cabin emergency hatch, placarded EXIT - PULL, is located on the right cabin sidewall just aft of the copilot's seat.  The hatch may be released from the inside with a pull-down handle.    A  flush-mounted,  pull  out  handle  allows  the hatch to be released from the outside.  The hatch is of the   non-hinged   plug   type   which   removes   completely from  the  frame  when  the  latches  are  released.    The hatch   can   be   key   locked   from   the   inside   to   prevent opening from the outside.  The inside handle will unlatch the    escape    hatch    whether    or    not    it    is    locked,    by overriding the locking mechanism.  The keylock should be   unlocked   prior   to   flight   to   allow   removal   of   the escape   hatch   from   the   outside   in   the   event   of   an emergency.  The key remains in the lock when the hatch is  locked  and  can  be  removed  only  when  the  hatch  is unlocked.    The  key  slot  is  in  the  vertical  position  when the hatch is unlocked.  Removal of the key from the lock before   flight   assures   the   pilot   that   the   hatch   can   be removed from the outside if necessary. 2-10. WINDOWS. a. Cockpit Windows.  The pilot and copilot have side  windows,  a  windshield,  and  storm  windows,  which provide  visibility  from  the  cockpit  The  storm  windows may  be  opened  on  the  ground  or  during  unpressurized flight b. Cabin  Windows.   The  outer  cabin  windows, constructed   of   two-ply   stretched   acrylic,   are   of   the pressure  type  and  are  an  integral  part  of  the  pressure vessel.  The windows have flaps which may be removed to permit visibility or installed to black out the windows. 2-11. SEATS. a. Pilot's and Copilot's Seats.   The  controls  for vertical  height  adjustment  and  fore  and  aft  travel  are located    under    each    seat.        The    forward    and    aft adjustment  handle  is  located  beneath  the  lower  front inboard  comer  of  each  seat.    Pulling  up  on  the  handle allows   the   seat   to   move   fore   or   aft.      The   height adjustment  handle  is  located  beneath  the  lower  front outboard comer of each seat.  Pulling up on the handle, allows the seat to move up and down.  Both seats have adjustable  headrests  and  armrests  which  will  raise  and lower  for  access  to  the  cockpit.    Handholds  on  either side of the overhead panels and a fold-away protective pedestal step are provided for pilot and copilot entry into the cock-pit.  For the storage of maps and the operator's manual   pilot's   and   copilot's   seats   have   an   inboard- slanted  expandable  pocket  affixed  to  the  lower  portion of  the  seat  back.    Pocket  openings  are  held  closed  by shock cord tension (fig. 2-10). 2-19