TM 1-1510-218-10 8-21 2.   CABIN SIGNS switch – As required. 3.   POWER levers – IDLE. 4.   PROP levers – HIGH RPM. 5.   GEAR – UP. 6.   FLAPS – UP. 7.   Airspeed – V_mo maximum. 8.   ICE & RAIN switches – As required. 9.   RECOG lights – As required. b.   DESCENT – Max Rate (Landing Configuration).    If   required   to   descend   at   a   low airspeed (e.g., to conserve airspace or in turbulence), approach flaps and  landing gear may be  extended  to increase    the    rate    and    angle    of    descent    while maintaining   the   slower   airspeed.      To   perform   the maximum   rate   of   descent   in   landing   configuration, perform the following. 1.   Cabin pressurization – Set.  Adjust CABIN CONTROLLER    dial    as    required    and adjust  RATE  control  knob  so  that  cabin rate  of  descent  equals  one-third  aircraft rate of descent. 2.   CABIN SIGNS switch – As required. 3.   POWER levers – IDLE. 4.   PROP levers – HIGH RPM. 5.   FLAPS – APPROACH. 6.   GEAR – DN. 7.   Airspeed – 181 KIAS maximum. 8.   ICE & RAIN switches – As required. 9.   RECOG lights – As required. 8-38.  DESCENT - ARRIVAL. Perform  the  following  checks  prior  to  the  final descent for landing. 1.   Cabin pressurization – Set.  Adjust CABIN CONTROLLER dial as required. 2.   CABIN SIGNS switch – As required. 3.   ICE & RAIN switches – As required. 4.   WSHLD ANTI-ICE – As required. NOTE Set windshield anti-ice to normal or high as required   well   before   descent   into   icing conditions or into warm moist air to aid in defogging.      Turn   off  windshield   anti-ice when    descent    is    completed    to    lower altitudes  and  when  heating  is  no  longer required.  This will preclude possible wind- screen distortions. 5.   RECOG lights – ON. 6.   Radio altimeter – As required. 7.   Altimeters    –    Set    to    current    altimeter setting. 8.   TCAS – Set as required. 9.   Arrival   briefing   –   Complete.      Refer   to Paragraph 8-68 for arrival briefing outline. 8-39.  APPROACH. 1.   HSI NAV SOURCE – As required. a.    Ensure  the  correct  navigational  source for the approach has been selected. O 2.   TCAS – Set as required. 8-40.  BEFORE LANDING. 1.   CABIN SIGNS switch – BOTH. 2.   PROP SYNC switch – OFF. 3.   AUTOFEATHER switch – ARM. 4.   BRAKE DEICE – As required. 5.   PROP levers – As required. NOTE During  approach,  propellers  should  be  set at  least  to  1900  RPM  to  prevent  glideslope interference  (ILS  approach),  provide  better power    response    during    approach,    and minimize  attitude  change  when  advancing propeller levers for landing. 6.   FLAPS (below 199 KIAS) – APPROACH. 7.   GEAR (below 181 KIAS) – DN. 8.   LANDING/TAXI lights – As required. 9.   CONDITION levers – HIGH IDLE. O 10.  TCAS – Set as required. H O