TM 1-1510-262-10
9-31. FLIGHT CONTROL MALFUNCTIONS.
Use the following procedures, as applicable, for light control malfunctions.
a. Autopilot Emergency Disconnection. The autopilot can be disengaged by any of the following methods:
1. Pressing the AP & YD/TRIM DISC switch.
@ Pressing the YD ENGAGE pushbutton on the autopilot controller.
3. Pressing the GO-AROUND switch (yaw damper will remain on).
$ Setting the AUTO PLT power switch to off position.
% Setting AVIONICS MASTER POWER switch to the OFF (aft) position.
^ Setting aircraft MASTER SWITCH to the OFF position.
& Pulling the AP CONTR and AFCS DIRECT circuit breakers.
b. Yaw Damp Emergency Disconnection. The yaw damp can be disengaged by any of the following meth-
ods:
1. Pressing the AP & YD/TRIM DISC switch.
@ Pressing the YD ENGAGE pushbutton on the autopilot controller.
# Setting the RUDDER BOOST/YAW CONTROL TEST switch to the YAW CONTROL TEST position.
$ Setting the AUTO PLT power switch to OFF (aft).
% Pulling the AP CONTR circuit breaker.
^ Pulling the RUDDER BOOST circuit breaker.
& Setting AVIONICS MASTER POWER switch to the OFF (aft) position.
* Setting aircraft MASTER switch to the OFF position.
c. Unscheduled Rudder Boost Activation. Rudder boost operation without a large variation of power be-
tween engines indicates a failure of the system. Perform the following:
1. AP & YD/TRIM DISC switch -- Disconnect and hold (hold to irst level).
@ RUDDER BOOST switch -- OFF.
# RUDDER BOOST circuit breaker -- Pull (provided that rudder boost does not deactivate).
4. AP & YD/TRIM DISC switch -- Release.
% Yaw damper -- Reengage (if RUDDER BOOST circuit breaker is not pulled).
d. Unscheduled Electric Trim. In the event of unscheduled electric elevator trim, perform the following:
1. AP & YD/TRIM DISC switch -- Press to 2 nd detent.
@ ELEV TRIM switch -- OFF/RESET.
# ELEC TRIM circuit breaker -- PULL.
Structural damage may exist after landing with brake, tire, or landing gear malfunctions. Under no
circumstances shall an attempt be made to inspect the aircraft until jacks have been installed.
9-32. LANDING EMERGENCIES.
NOTE
Test the green gear down indicator lights and monitor the red LDG GEAR CONTROL handle indi-
cator prior to initiating this procedure.
a. Landing Gear Unsafe Annunciator Light Indication.
1. LDG GEAR CONTROL handle -- Check DN.
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