TM 1-1510-225-10 8-9 * 8-20.  INTERIOR CHECK. 1.  Cargo/loose equipment – Check secure. CAUTION Ferry   fuel   tank   caps   shall   be   properly secured    to    prevent    fuel    fumes    from escaping into the cabin. H O 2.  Ferry  fuel  tanks  and  caps  –  Visually  check fuel level of each tank, condition of seal, and that   cap   is   tight   and   properly   installed. Check tiedowns and platform assemblies to determine if tanks are securely installed. O 3.  Ferry fuel tank selector valve(s) – Closed. H 4.  Cabin door – Locked and checked.  Ensure the   cabin   door   is   closed   and   locked   as follows.    Check  position  of  safety  arm  and diaphragm plunger (lift door step) and each of  the  six  rotary  cam  locks  align  within  the orange   sight   indicators.      In   addition,   the following    inspection    and    test    shall    be performed prior to the first flight of the day. a.  Open  cabin  door  –  Check  that  DOOR UNLOCKED annunciator is extinguished. b.  Latch cabin door but do not lock – Check that    DOOR   UNLOCKED    annunciator illuminates. c.   BATT  switch  –  ON.    Check  that  DOOR UNLOCKED annunciator is still illuminated. d.  Close and lock cabin door –  Check  that DOOR     UNLOCKED     annunciator     is extinguished. e.  BATT switch – OFF. 5.  Cargo door – Locked and checked.  Ensure cargo door is closed and locked as follows: a.  Upper   handle   position   –   Closed   and locked  (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 (orange indicator must align with orange stripe on carrier rod). NOTE The   untapered   shoulder   of   the   latching pins  should  extend  past  each  attachment lug. H 6.  Crew/passenger briefing – Complete. 8-21.  BEFORE STARTING ENGINES. NOTE GPU    engine    starts    are    the    preferred starting method. * 1.  Parking brake – Set. * 2.  Oxygen system – Crew ready. * 3.  Pilot's instrument panel – Check. a.  Compass control – SLV. b.  PROP SYN switch – ON. 4.  Pilot's clock – Check and set. * 5.  Pilot's subpanel – Check. a.  MIC selector switch – NORMAL. b.  Engine ice vanes – As required. NOTE The ENGINE ANTI-ICE switch should be set to ON for all ground operations to minimize ingestion of ground  debris.    Set  switch  to OFF    to    maintain    engine    temperatures within limits. c.   PILOT AIR control – As required. d.  DEFROST AIR control – As required. e.  LDG GEAR CONTROL – DN. f.    LANDING GEAR RELAY circuit breaker – In. g.  All other switches – Off. * 6.  Avionics panel switches – As required. NOTE Where  excessive  gravel/debris  is  present, or   the   ramp   is   slippery,   the   pilot   may consider   starting   the   engines   with   the props   in   FEATHER,   but    must    closely monitor ITT on engine start. * 7.  Power console – Check. a.  POWER levers – IDLE. b.  PROP levers – As required. c.   CONDITION levers – FUEL CUTOFF. d.  Trim tabs – Set. e.  Landing gear  alternate  extension  handle – Stowed. * 8.  Pedestal – Check.