TM 1-1510-218-10 9-4 minimum   rate   of   descent.      Perform   the   following procedure if the second engine fails during flight. 1.   Airspeed – As required. 2.   PROP lever – As required. 9-8.  ENGINE SHUTDOWN IN FLIGHT. 1.   POWER lever – IDLE. 2.   PROP lever – FEATHER. 3.   CONDITION lever – FUEL CUTOFF. 4.   Engine cleanup – Perform. 9-9.  ENGINE CLEANUP. The   engine   cleanup   procedure   is   to   be   used after engine malfunction, shutdown, or an unsuccessful restart. 1.   CONDITION lever – FUEL CUTOFF. 2.   ENG AUTO IGN – OFF. 3.   AUTOFEATHER switch – OFF. 4.   GEN switch – OFF. 5.   PROP SYNC switch – OFF. 9-10.  ENGINE  RESTART  DURING  FLIGHT  (USING STARTER). CAUTION The  pilot  should  determine  the  reason  for engine failure before attempting an  engine restart  during  flight.    Do  not  attempt  an engine restart if N₁ indicates zero. Engine restarts may be attempted at all altitudes. If a restart is attempted, perform the following: 1.   CABIN AIR/TEMP MODE switch – OFF. 2.   Electrical load – Reduce to minimum. 3.   FIRE PULL handle – In. 4.   POWER lever – IDLE. 5.   PROP lever – FEATHER. 6.   CONDITION lever – FUEL CUTOFF. 7.   TGT (operating engine) – 700 ºC or less. 8.   Engine – Start. a. IGNITION     AND     ENGINE     START switch – ON. b. CONDITION lever – LOW IDLE. NOTE If   a   rise   in   TGT   does   not   occur   within 10 seconds  after  moving  the   CONDITION lever to LOW IDLE, abort the start. c. TGT – 1000 °C, 5 seconds maximum. NOTE If  N₁  is  below  12%,  starting  temperatures tend to be higher than normal.  To preclude overtemperature (1000 °C or above) during engine acceleration to idle speed, periodically   move   the   CONDITION   lever into FUEL CUTOFF position, as necessary. d. Oil pressure – Check. e. IGNITION     AND     ENGINE     START switch – OFF at 50% N₁. 9.   GEN switch – RESET, then ON. 10.   Engine cleanup – Perform if engine restart is unsuccessful. 11.   CABIN   AIR/TEMP   MODE   switch   –   As required. 12.   Electrical equipment – As required. 13.   ENG AUTO IGN switch – ARM. 14.   PROP SYNC switch – As required. 15.   POWER – As required. 9-11.  ENGINE   RESTART   DURING   FLIGHT   (NOT USING STARTER). A restart without starter assist may be accomplished    provided    airspeed    is    at    or    above 140 KIAS,   altitude   is   below   20,000   feet,   and   the propeller  is  not  feathered.    If  altitude  permits,  diving the aircraft will increase N₁ and assist in restart. 1.   CABIN AIR/TEMP MODE switch – OFF. 2.   Electrical load – Reduce to minimum.