737 MAX Flight Crew Operations Manual
Normal Procedures -
Amplified Procedures
MN-FLT-OH-201
NP.21.42
Engine Start Considerations
Normal starter duty cycle:
-700 and -800 Fleets Only
• Multiple consecutive start attempts are permitted. Each start
attempt has a limit of 2 minutes of starter usage.
-MAX 8 Fleet Only
• Multiple consecutive start attempts are permitted. Each start
attempt has a limit of 3 minutes of starter usage.
• A minimum of 10 seconds is needed between start attempts.
Extended engine motorings:
-700 and -800 Fleets Only
• Starter usage is limited to 15 minutes for the first two extended
engine motorings. A minimum of 2 minutes is needed between
each attempt.
-700 and -800 Fleets Only
• For the third and subsequent extended engine motorings, starter
usage is limited to 5 minutes. A minimum of 10 minutes is needed
between each attempt.
-MAX8 Fleet Only
• Starter usage is limited to 5 minutes for all extended engine
motorings. A minimum of 5 minutes is needed between the first
two extended engine motorings.
MAX8 Fleet Only
• For the third and subsequent extended engine motorings, a
minimum of 10 minutes is needed between each engine motoring.
Normal engine start considerations:
• Do not move an engine start lever to IDLE early or a hot start can
occur;
• Keep a hand on the engine start lever while monitoring RPM, EGT
and FUEL FLOW, until stable;
• If fuel is shut off accidentally (by closing the engine start lever) do
not reopen the engine start lever in an attempt to restart the engine;
March 1, 2021