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At top of descent: LAND ALT Indicator................................................................. Reset Reset to new destination field elevation.
Automatic Pressurization Control – Departure Airport Elevation Above 9500 Feet YA721 - YA802
Oxygen masks and regulators .............................................. ON, Normal Supplemental oxygen must be used when operating the airplane anytime the cabin altitude is above 10,000 feet. After electrical power is applied to the airplane: ALT HORN CUTOUT switch .................................................... Push Monitor CABIN altitude and CABIN rate of CLIMB indicators during climbout to ensure cabin altitude is descending below 8500 feet. No cabin altitude warning is provided until the cabin altitude warning system is reset to 10,000 feet after the cabin altitude descends below 8500 feet. If landing altitude is at or below 6000 feet: LAND ALT indicator ................................Destination field elevation
Copyright . The Boeing Company. See title page for details.

Supplementary Procedures -Air Systems 737 Flight Crew Operations Manual
If landing altitude is above 6000 feet:
Accomplish Automatic Pressurization Control - Landing Airport Elevation Above 6000 Feet Supplementary Procedure.
Automatic Pressurization Control – Landing Airport Elevation Above 6000 Feet YA613 - YA687, YA803 - YK104
If flight is less than one hour:
Accomplish Normal Procedures.

If flight is more than one hour:
Accomplish Normal Procedures except as modified below.
Prior to takeoff:

LAND ALT indicator ......................................................6000 feet At initial descent or approximately 20 minutes prior to landing: LAND ALT indicator .......................... Destination field elevation
Automatic Pressurization Control – Landing Airport Elevation Above 6000 Feet YA721 - YA802
If flight is less than one hour and landing altitude is below 9500 feet: Accomplish Normal Procedures. If flight is more than one hour or landing altitude is at or above 9500
feet:
Accomplish Normal Procedures except as modified below.
Prior to takeoff:

LAND ALT indicator ......................................................6000 feet At initial descent or approximately 20 minutes prior to landing: LAND ALT indicator .......................... Destination field elevation
Copyright . The Boeing Company. See title page for details.
Supplementary Procedures -Air Systems 737 Flight Crew Operations Manual

If landing elevation is above 9500 feet: When cabin altitude warning sounds: Oxygen masks and regulators...............................ON, Normal Supplemental oxygen must be used anytime the cabin altitude is above 10,000 feet. ALT HORN CUTOUT switch .......................................... Push
Unpressurized Takeoff and Landing
When making a no engine bleed takeoff or landing with the APU inoperative:
Takeoff
PACK switches .............................................................................. AUTO
ISOLATION VALVE switch ....................................................... CLOSE
Engine BLEED air switches..............................................................OFF

After Takeoff
Note: If engine failure occurs, do not position engine BLEED air switches ON until reaching 1500 feet or until obstacle clearance height has been attained.
At not less than 400 feet, and prior to 2000 feet above field elevation: Engine No. 2 BLEED air switch ................................................... ON
When CABIN rate of CLIMB indicator stabilizes: Engine No. 1 BLEED air switch ................................................... ON ISOLATION VALVE switch ................................................... AUTO
Landing
When below 10,000 feet and starting final approach turn: Engine BLEED air switches ........................................................OFF Avoid high rates of descent for passenger comfort.
No Engine Bleed Takeoff and Landing
When making a no engine bleed takeoff or landing with the APU operating.
Copyright . The Boeing Company. See title page for details.
SP.2.6  September 29, 2005

Supplementary Procedures -Air Systems 737 Flight Crew Operations Manual
Takeoff
Note: If anti–ice is required for taxi, configure for a “No Engine Bleed Takeoff” just prior to take–off. Note: If anti–ice is not required for taxi, configure for a “No Engine Bleed Takeoff” just after engine start. Right PACK switch........................................................................AUTO ISOLATION VALVE switch ....................................................... CLOSE Left PACK switch ..........................................................................AUTO Engine No. 1 BLEED air switch ...................................................... OFF APU BLEED air switch......................................................................ON Engine No. 2 BLEED air switch ...................................................... OFF YC153 - YC413, YK101 - YK104 Trim Air Switch..................................................................................ON
　
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