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BCD If using VREF 15 and if icing conditions have been
experienced or are anticipated prior to landing set VREF =VREF 15 + 10.
Use normal wind additive to VREF for establishing appropriate “target”
speed.
Target................................................................VREF 15 + WIND ADDITIVE
>>@ If ice formations are observed on the aircraft surfaces, (wings,
windshield wipers, window frames, etc.) add 10 knots to VREF for
establishing Target speed to ensure maneuvering capability.
Plan a flaps 15 landing using alternate extension. (This is recommended
because of the time required to retract flaps electrically in the event of a goaround.)
Flaps 15 configuration results in a higher than normal pitch attitude. There
is a tendency to push the nose down to obtain a normal visual sight picture.
Use caution to avoid going below the normal glide path.
Review the weather prior to extension of gear and leading edge devices,
because the drag penalty / speed restriction may make it impossible to
reach an alternate.
(Continued)
737
Flight Manual
Continental
HYDRAULICS
Sec. 2.13 Page 7
Rev. 11/15/02 #41
Autobrake....................................................................................................OFF
In Range and Approach Checklists .....................................ACCOMPLISH
Go-Around Procedure ......................................................................REVIEW
Advance thrust to go-around smoothly and slowly to avoid excessive pitchup.
Observe trailing edge flap and leading edge device limit speeds.
Landing gear cannot be retracted.
Limit bank angle to 15 degrees until reaching flaps 15 maneuver speed.
Alternate flaps position switch must be manually positioned to OFF from UP.
Use caution to avoid retracting flaps to less than the desired position.
- - - - - PRIOR TO FINAL - - - - -
Allow approximately two minutes to extend flaps from 0 to 15 degrees using
alternate extension system.
Plan for manual gear extension. When the gear has been lowered manually, it
cannot be retracted. When the leading edge devices have been extended by the
alternate system, they cannot be retracted.
Ground Proximity Flap Inhibit Switch............................................INHIBIT
Alternate Flaps Master Switch ...............................................................ARM
During flap extension (230 knots max), set handle to next desired flap
position, extend flaps, then slow to respective maneuver speed. Repeat this
process until flaps have been lowered to 15.
Note: Asymmetry protection is not provided when the alternate
extension is used. Monitor the flap indicators closely. Alternate
extension to flaps 15 takes approximately 2 minutes.
Note: The LE FLAPS TRANSIT light will remain illuminated until flaps
approach the flaps 10 position.
Landing Gear Lever...................................................................................OFF
(Continued)
HYDRAULICS
Sec. 2.13 Page 8
Rev. 11/15/02 #41
Continental
737
Flight Manual
Manual Gear Extension Handles .......................................................... PULL
The uplock is released when the handle is pulled to its limit, approximately
18 inches for the main gear and 8 inches for nose gear. The respective red
gear light illuminates, indicating uplock release. The gear free-falls to the
locked position, and the green gear lights illuminate as each gear is locked
DOWN.
Wait 15 seconds after the last manual gear extension handle is pulled:
Landing Gear Lever..............................................................................DOWN
The red gear lights extinguish.
Landing Checklist ..................................................................ACCOMPLISH
* * * *
737
Flight Manual
Continental
HYDRAULICS
Sec. 2.13 Page 9
Rev. 11/15/02 #41
STANDBY HYDRAULIC LOW PRESSURE
Illumination of the standby hydraulic LOW PRESSURE light indicates low output
pressure from the electric motor-driven standby pump. The standby hydraulic
system may be totally inoperative.
Stby Hyd Pump Normal Circuit Breaker
(>>@ P6-11, A-8,
BCD E & E Compartment) ..............................CHECK, RESET
IF Standby Pump Was Started By A Flight Control Switch:
Flight Control Switch.............................................. OFF, THEN RESET
TO STBY RUDDER
Caution: Rudder control may be affected while recycling the switch.
The following standby hydraulic components are inoperative with the loss of
another hydraulic system:
· Loss of A and B (manual reversion): Rudder, LED’s, and thrust reversers.
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