737 MAX Flight Crew Operations Manual
Normal Procedures -
Amplified Procedures
MN-FLT-OH-201
NP.21.51
If Single Engine Taxi Out is being performed:
When it is predicted to comply with engine warm up recommendations
before takeoff, start the second engine considering normal starter duty
cycle and abort start conditions.
Either an APU assisted or crossbleed engine start may be performed.
This should only be done with the aircraft either stopped or taxiing on
straight taxiways.
CAUTION:
if an abort start condition occurs, the aircraft must be
immediately parked.
Call “Start Engine No.__” ............................................................. (C)
Left PACK switch or both PACK switches........................ OFF (F/O)
ENGINE START switch (engine being started) ............... GRD (F/O)
Start chronometer .......................................................................... (C)
Monitor time of starter duty cycle.
Verify that the N2 RPM increases ..............................................(F/O)
When N1 rotation is seen and N2 is at 25%, or (if 25% is not
possible), at maximum motoring and a minimum of 20% N2.
Note:
maximum motoring occurs when N2 acceleration is less
than 1% in approximately 5 seconds.
MAX8 Fleet Only
Only open the start lever after the MOTORING indication on the
N2 indicator blanks.
Engine Start lever............................................................. IDLE (F/O)
Keep the hand on the start lever until the engine is at stable idle.
MAX8 Fleet Only
Note:
during the TCMA/EOS test, fuel flow indication will be zero
and the ENG VALVE CLOSED light will illuminate blue
until the test is complete.
Start chronometer ...................................................................... (F/O)
Monitor time to EGT rise.
March 1, 2021