737 MAX Flight Crew Operations Manual
Limitations -
Limitations and Operational
Information
MN-FLT-OH-201
L.10.7
Non-AFM Operational Information
APU bleed valve must be closed when:
• ground air connected and isolation valve is open
• engine no. 1 bleed valve is open
• isolation and engine no. 2 bleed valves open.
APU bleed valve may be open during engine start, but avoid engine power above
idle.
After three consecutive aborted start attempts, a 15-minute cooling period is
required.
Run the APU for two full minutes before using it as a bleed air source.
Flight Controls
AFM Limitations
# The maximum altitude with flaps extended is 20,000 feet.
# Holding in icing conditions with flaps extended is prohibited.
In flight, do not extend the speed brake lever beyond the FLIGHT detent. Do not
use speed brakes below 1000 feet above the surface.
# In flight, do not extend the speedbrake lever beyond the ARMED detent with
flaps 40 selected.
# Avoid rapid and large alternating control inputs, especially in combination with
large changes in pitch, roll, or yaw (e.g., large side slip angles) as they may result
in structural failure at any speed, including below VA.
Non-AFM Operational Information
# Do not deploy the speedbrakes in flight at radio altitudes less than 1,000 feet.
Alternate flap duty cycle:
• When extending or retracting flaps with the ALTERNATE FLAPS
position switch, allow 15 seconds after releasing the ALTERNATE
FLAPS position switch before moving the switch again to avoid damage
to the alternate flap motor clutch
• After a complete extend/retract cycle, i.e., 0 to 15 and back to 0, allow 5
minutes cooling before attempting another extension.
March 1, 2021
