737 Operations Manual
Non-Normal Checklists -
Unannunciated
Copyright © The Boeing Company. See title page for details.
NNC.0.24 D6-27370-400E-TBCE
UNCOMMANDED RUDDER
Condition: Uncommanded rudder pedal displacement or pedal
kicks.
AUTOPILOT (if engaged) . . . . . . . . . . . . . . . . . . . .DISENGAGE
Maintain control of the airplane with all available flight
controls. If roll is uncontrollable, immediately reduce
pitch/angle of attack and increase airspeed. Do not attempt
to maintain altitude until control is recovered.
AUTOTHROTTLE (if engaged) . . . . . . . . . . . . . . .DISENGAGE
Verify thrust is symmetrical.
YAW DAMPER SWITCH . . . . . . . . . . . . . . . . . . . . . . . . . . . . OFF
RUDDER TRIM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CENTER
RUDDER PEDALS . . . . . . . . . . . . . . . . . . . . . FREE & CENTER
Use maximum force including a combined effort of both
pilots, if required, to free and center the rudder pedals.
If rudder pedal position or movement is not normal and the
condition is the not the result of rudder trim:
SYSTEM B FLIGHT
CONTROL SWITCH . . . . . . . . . . . . . . . . . . . . . . . STBY RUD
A slight rudder deflection may remain, but continued
rudder pedal pressure may help maintain an in-trim
conditon.
Sufficient directional control is available on landing
using differential braking and nose wheel steering.
Crosswind capability may be reduced.
Do not use auto brakes.
Consider checking rudder freedom of movement at a safe
altitude using slow rudder inputs while in the landing
configuration and at approach airspeed.
Continued on next page
June 07, 2002
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