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conditions, the F/D will command a return to vertical path up to the point of 25°
pitch and reaching full stall conditions. To achieve windshear recovery
enhancement flight guidance, the aircraft must be flown in the TOGA pitch mode.
By depressing either TOGA button, the F/D command bars will provide proper
flight path guidance. The F/D command bars come into view or remain in view,
regardless of ON/OFF switch position.
Standard Recovery Procedure For Takeoff / Approach Windshear
1. Press either TOGA button while applying maximum throttle.
2. Follow the flight director guidance.
3. Resume standard windshear procedures.
Note: TOGA cannot be selected above 2,000 ft. RA.
Note: When a takeoff is made with the F/D off, windshear flight director
guidance will become available if the TOGA button is depressed
after accelerating past 80 kts. If the F/D switch remains OFF, the
command bars will bias out of view when the pitch mode changes
to ALT ACQ. There will be no pitch command to level off at MCP
altitude.
Note: With the red warning lights illuminated and maintaining F/D pitch
commands, all other GPWS warnings are inhibited (i.e., “PULL
UP” or “TOO LOW - GEAR,” etc.).
Sec. 3 Page 318
Rev. 11/15/02 #41 Continental
737
Flight Manual
PREDICTIVE WINDSHEAR
The following procedural chart applies to the predictive windshear system.
Continental policy is to avoid all windshear and other hazardous weather.
Note: Windshear alerts are inhibited on the ground above 100 KIAS to 50
feet AGL.
Phase of
Operation
Warning
Alert
Caution
Alert
Advisory
Alert
System
Failure
Before
Takeoff
Advise ATC of
the location of the
Warning Alert.
Delay takeoff until
the warning is no
longer present.
Advise ATC of the
location of the
Caution Alert. At
the Captain’s
discretion, delay
the takeoff, or
takeoff and
maneuver to avoid
the hazard.
Advise ATC of the
location of the
windshear hazard.
After takeoff,
maneuver to avoid
the windshear
hazard area.
Use other
means of
windshear
avoidance in
accordance
with published
FAA
windshear
recovery
guidelines.
Takeoff: Prior
to 100 kts.
Reject the
takeoff. Advise
ATC of the
location of the
windshear
hazard.
Assure maximum
rated thrust is
applied. Continue
the takeoff, and
advise ATC of the
hazard and
maneuver around
the hazard.
Assure maximum
rated thrust is
applied. Continue
the takeoff, and
advise ATC of the
hazard, and
maneuver around
the hazard.
Same as
above.
After Takeoff Assure maximum
rated thrust is
applied. If the
windshear is
penetrated, utilize
windshear
recovery
procedures.
Advise ATC of
the hazard.
Assure maximum
rated thrust is
applied. If the
windshear is
penetrated, utilize
windshear
recovery
procedures.
Advise ATC of the
hazard.
Continue the climb
out and monitor
the windshear
hazard. Advise
ATC of the
hazard.
Same as
above.
During
Approach
Initiate a normal
go-around. If the
windshear hazard
is penetrated,
utilize windshear
recovery
procedures.
Advise ATC of
the hazard.
At the Captain’s
discretion,
maneuver around
the windshear
hazard if a safe
stabilized
approach can be
continued after the
maneuver, or
initiate a normal go
around.
Continue the
approach, monitor
the location of the
windshear event.
Advise ATC of the
hazard.
Same as
above.
* * * *
737
Flight Manual Continental
Sec. 3 Page 319
Rev. 11/15/02 #41
TURBULENCE
WARNING: Severe turbulence should be avoided if at all possible. If
severe turbulence cannot be avoided, a descent 4000 feet
below optimum altitude is recommended to increase buffet
margin.
The two major concerns when encountering turbulence are minimizing
structural loads imposed on the aircraft and avoiding extreme, unrecoverable
attitudes.
Autopilot
If turbulence is light to moderate, it is best to use the autopilot. If turbulence is
greater than moderate, the autopilot may be used as long as its operation is
monitored with the following precautions.
· Autopilot CWS use is recommended. Maintain heading and altitude by
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