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• Adjust thrust and drag as required.
• Call out attitude,
airspeed and altitude
throughout the
recovery
• Verify all required
actions have been
completed and call out
any omissions.
December 3, 2004
737 Flight Crew Operations Manual
Non-Normal Maneuvers -
Non-Normal Maneuvers
Copyright © The Boeing Company. See title page for details.
NNM.1.10
Windshear
The following is immediately accomplished by recall if windshear conditions are
encountered. The following conditions are indications of windshear encounters:
• activation of the “WINDSHEAR” warning
• inadvertent windshear encounter or other situation resulting in
unacceptable flight path deviations
Note: In general, unacceptable flight path deviations are recognized as
uncontrolled changes from normal steady state flight conditions below
1000 feet AGL, in excess of any of the following:
• 15 knots indicated airspeed
• 500 fpm vertical speed
• 5° pitch attitude
• 1 dot displacement from the glideslope
• unusual thrust lever position for a significant period of time.
Continued on next page
December 3, 2004
737 Flight Crew Operations Manual
Non-Normal Maneuvers -
Non-Normal Maneuvers
Copyright © The Boeing Company. See title page for details.
 NNM.1.11
Continued from previous page
Note: *Maximum thrust can be obtained by advancing the thrust levers to the
takeoff or go-around limit. If terrain contact is imminent, advance thrust
levers full forward.
** If TO/GA is not available, disconnect autopilot and autothrottle and fly
manually.
Continued on next page
Pilot Flying Pilot Not Flying
MANUAL FLIGHT
• Disconnect autopilot
• Press either TO/GA switch
• Aggressively apply maximum*
thrust
• Disconnect autothrottle
• Simultaneously roll wings
level and rotate toward an
initial pitch attitude of 15 °
• Retract speedbrakes
• Follow flight director TO/GA
guidance (if available).
AUTOMATIC FLIGHT
• Press either TO/GA switch**
• Verify TO/GA mode
annunciation
• Verify thrust advances to GA
power
• Retract speedbrakes
• Monitor system
performance***.
• Assure maximum* thrust
• Verify all required actions have
been completed and call out
any omissions.
• Do not change flap or gear
configuration until windshear
is no longer a factor
• Monitor vertical speed and
altitude
• Do not attempt to regain lost
airspeed until windshear is no
longer a factor.
• Monitor vertical speed and
altitude
• Call out any trend toward
terrain contact, descending
flight path, or significant
airspeed changes.
December 3, 2004
737 Flight Crew Operations Manual
Non-Normal Maneuvers -
Non-Normal Maneuvers
Copyright © The Boeing Company. See title page for details.
NNM.1.12
Continued from previous page
Note: Aft control column force increases as the airspeed decreases. In all cases,
the pitch attitude that results in intermittent stick shaker or initial buffet is
the upper pitch attitude limit. Flight at intermittent stick shaker may be
required to obtain a positive terrain separation. Smooth, steady control will
avoid a pitch attitude overshoot and stall.
WARNING: *** Severe windshear may exceed the performance of the
AFDS. The pilot flying must be prepared to disconnect the
autopilot and autothrottle and fly manually.
December 3, 2004
737 Flight Crew Operations Manual
Non-Normal Maneuvers Chapter NNM
Flight Patterns Section 2
Copyright © The Boeing Company. See title page for details.
 NNM.2.1
NNM.2 Non-Normal Maneuvers-Flight Patterns Takeoff
VR
• Rotate
3000 feet
• One or 2 engine
Thrust set
• Manually advance
Positive rate of climb
• Gear up
flap retraction altitude
• Select flaps up maneuvering speed
• Set/verify climb thrust (2 engine)
• •
•
•
thrust to stabilize
• Press TO/GA
Flaps up
Acceleration height
At 400 feet AGL
• Select roll mode
• Maintain flaps up maneuvering speed
• Set max continuous thrust (1 engine)
• After takeoff checklist
• VNAV engaged
•
(normally 1000 ft.)
• Non–Normal checklist (if required)
(as required)
　
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