TM 1-1510-218-10 8-8 8-20.  INTERIOR CHECK. 1.   Cargo/loose equipment – Check secure. 2.   Cabin door – Locked and checked.  Ensure that  the  cabin  door  is  closed  and  locked. Check position of safety arm and diaphragm plunger   (lift   door   step)   and   that   the   four sight  openings  on  the   inner  facing  of  the door  and  green  stripe  on  each  locking  bolt align with a pointer C .  Check that each of the   six   rotary   cam   locks   align   within   the orange sight indicators  D  .   In  addition,  the following     inspection     and     test     shall     be performed prior to the first flight of the day. a.   Open    cabin    door    –    Check    that    the CABIN DOOR annunciator light is extinguished. b.   Latch   cabin   door,   but   do   not   lock   – Check that the CABIN DOOR annunciator light illuminates. c.   Battery   switch   ON   –   Check   that    the CABIN   DOOR   annunciator   light   is   still illuminated. d.   Close  and  lock  the  cabin  door  –  Check that  the  CABIN  DOOR  annunciator  light is extinguished. e.   Battery switch – OFF. 3.   Cargo    door    D    –    Locked    and    checked. Ensure  that  the  cargo  door  is  closed  and locked as follows: a.   Upper    handle    position    –    Closed    and locked.      The   orange   index   marks   on each  of  the  four  rotary  cam  locks  must align within the sight indicators. b.   Lower pin latch handle position – Closed and     latched.          The orange     colored indicator must align with orange stripe on carrier rod. NOTE The   untapered   shoulder   of   the   latching pins extend past each attachment lug. 4.   Emergency   exit   –   Check   secure   and   key removed. H 5.   Crew/passenger    briefing    –    As    required. Refer   to   passenger   briefing   in   Paragraph 8-66. 8-21.  BEFORE STARTING ENGINES. * 1.   Oxygen  system  –  Set.    PULL  ON  CREW READY/SYS READY. 2.   Circuit breakers – Check circuit breakers in. * 3.   Overhead panel – Check in desired sequence. a.   LIGHT DIMMING controls – As required. b.   CABIN TEMP MODE switch – OFF. c.   BLEED AIR VALVES – ENVIRO OFF. d.   ICE & RAIN switches – OFF ICE VANE – As required. e.   INTR LIGHT switches – As required. f.    EXTERIOR LIGHT switches – As required. g.   MASTER  PANEL  LIGHTS  switch  –  As required. h.   INVERTER switches – Off. i.     AVIONICS  MASTER  POWER  switch  – Off. j.     AUTOFEATHER switch – OFF. k.   ENVIRONMENTAL switches – As required. l.     #1 ENG START switches – OFF. m. MASTER SWITCH – Off. n.   #2 ENG START switches – OFF. * 4.   Fuel panel switches – Check. a.   STANDBY PUMP switches – Off. b.   Auxiliary transfer switches  – AUTO. c.   CROSSFEED switch  – OFF. 5.   Magnetic     compass     –     Check     for     fluid, heading, and current deviation card. 6.   CLOCK and MAP lights – OFF. CAUTION Movement of the power levers into REVERSE range while the condition levers are    in    FUEL     CUT-OFF     may     result     in bending and damage to control linkage. * 7.   Pedestal controls – Set. a.   POWER levers – IDLE.