737 Flight Crew Operations Manual
Supplementary Procedures -
Adverse Weather
Boeing Proprietary. Copyright © Boeing. May be subject to export restrictions under EAR. See title page for details.
SP.16.16 D6-27370-866-EGP
Shutdown Procedure
Do the following step before starting the normal Shutdown Procedure:
After landing in icing conditions:
WARNING: Ensure that the stabilizer trim wheel handles are
stowed before using electric trim to avoid
personal injury.
Stabilizer trim ........................................... Set 5 units C
Prevents melting snow and ice from running into the
tailcone. Excessive water in the tailcone can freeze and
lock controls.
Secure Procedure
Do the normal Secure Procedure with the following modifications:
If the airplane will be attended and warm air circulation throughout the
cargo E/E compartments is desired:
CAUTION: Do not leave the interior unattended with a pack
operating and all doors closed. With the airplane
in this configuration, accidental closure of the
main outflow valve can cause unscheduled
pressurization of the airplane.
APU ....................................................................Start F/O
APU GENERATOR bus switches ....................... ON F/O
PACK switches ............................................... AUTO F/O
ISOLATION VALVE switch............................OPEN F/O
Pressurization mode selector ............................ MAN F/O
Outflow valve switch .......................................OPEN F/O
Prevents aircraft pressurization.
Note: The airplane must be parked into the wind when the
outflow valve is full open.
APU BLEED air switch ....................................... ON F/O
September 15, 2016
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