737 Flight Crew Operations Manual
Limitations -
Operating Limitations
Boeing Proprietary. Copyright © Boeing. May be subject to export restrictions under EAR. See title page for details.
L.10.4 D6-27370-866-EGP
Air Systems
Pressurization
The maximum cabin differential pressure (relief valves) is 9.1 psi.
Non–AFM Operational Information
Note: The following items are not AFM limitations, but are provided for flight
crew information.
With either one or both engine bleed air switches ON, do not operate the air
conditioning packs in HIGH for takeoff, approach or landing.
Note: The fire protection Non-Normal procedures takes precedence over the
statement regarding no air conditioning pack in HIGH during takeoff,
approach, or landing. The CARGO FIRE and SMOKE/ FUMES
REMOVAL checklists require the Operating PACK switch(es) HIGH.
Switch(es) need to be placed in HIGH in order to increase ventilation for
smoke removal.
Autopilot/Flight Director System
# Use of aileron trim with the autopilot engaged is prohibited.
# Do not engage the autopilot for takeoff below 400 feet AGL.
YK981 - YQ456
Airplanes operating under FAA Rules:
YK981 - YQ456
# For single channel operation during approach, the autopilot shall not remain
engaged below 50 feet AGL.
YK981 - YQ456
# Airplanes operating with FAA Rules: Maximum allowable wind speeds when
landing weather minima are predicated on autoland operations:
• Headwind 25 knots
• Crosswind 20 knots
• Tailwind 15 knots.
# Maximum and minimum glideslope angles for autoland are 3.25 degrees and 2.5
degrees respectively.
# Autoland capability may only be used with flaps 30 or 40 and both engines
operative.
September 15, 2016
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