TM  55-1510-222-10 NOTE To     reset     beacon     light,     turn     off approximately  5  seconds,  then  DAY or NIGHT. When voltage drops below approximately  20  volts,  the  beacon light may become inoperative. 8-16.  ABORT START PROCEDURE. 1. Condition lever FUEL CUTOFF. 2. Ignition    and    engine    start    switch    STARTER ONLY 3. TGT Monitor for drop in temperature. 4. Ignition and engine start switch OFF. 8-17.  ENGINE CLEARING PROCEDURE. 1. Condition lever FUEL CUTOFF. 2. Ignition  and  engine  start  switch  OFF  (1  minute minimum). 3. Ignition    and    engine    start    switch    STARTER ONLY. 4. Ignition and engine start switch OFF. 8-18.*FIRST ENGINE START (GPU START). When making a ground power unit (GPU) start, the left engine should be started first due to the GPU receptacle being  adjacent  to  the  right  engine.    Normally,  only  one engine   is   started   utilizing   the   GPU,   reverting   to   the Battery   Start   procedure   for   the   second   engine   start. Crew   member   should   monitor   the   outside   observer throughout the engine start procedures. 1. INS As required. NOTE The   engines   must   not   be   started until  after  the  INS  is  placed  into  the NAV mode or OFF as required. 2. Exterior light switches As required. 3. Propeller area Clear. 4. #1   ignition   and   engine   start   switch   START   - IGNITION.    #1  IGN  ON  annunciation  should  illuminate and    associated    FUEL    PRESS    annunciation    should extinguish. NOTE False   fuel   flow   indication   may   be observed   with   the   starter   engaged and the condition lever in cutoff. CAUTION If  ignition  does  not  occur  within  10 seconds after moving condition lever to   LOW   IDLE,   initiate   Abort   Start procedure.        If    for    any    reason    a starting  attempt  is  discontinued,  the entire    starting    sequence    must    be repeated after allowing the engine to come  to  a  complete  stop  (1  minute minimum). 5. Condition   lever   (after   N.,   RPM   passes   13% minimum) LOW IDLE. CAUTION Monitor  TGT  to  avoid  a  hot  start.    If there   is   a   rapid   rise   in   TGT,   be prepared   to   abort   the   start   before limits   are   exceeded.   During   engine start, the maximum allowable TGT is 1000° C for 5 seconds.  If this limit is exceeded, use Abort Start procedure and   discontinue   start.      Enter   the peak   temperature   and   duration   on DA Form 2408-13. 6. TGT and N.  Monitor (TGT 1000°  C maximum) 7. Oil pressure Check (60 PSI minimum). 8. #1  ignition  and  engine  start  switch  OFF  after TGT peaks. 9. Condition  lever  HIGH  IDLE.    Monitor  TGT  as the condition lever is advanced. 10. DC GPU disconnect As required. 11. Generator  switch  RESET  then  ON,  for  second engine battery start. 8-19.*SECOND ENGINE START (GPU START). 1. Propeller area Clear. 2. #2    ignition    and    engine    start    switch    START IGNITION.    #2  IGN  ON  annunciation  should  illuminate and    associated    FUEL    PRESS    annunciation    should extinguish. 3. Condition   lever   (after   N.      RPM   passes   13% minimum) LOW IDLE. 4. TGT and N.  Monitor (TGT 1000°  C maximum). 5. Oil pressure Check (60 PSI minimum). 6. #2  ignition  and  engine  start  switch  OFF  after TGT peaks. 8-11