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DIRECTIONAL CONTROL PROBLEMS WITH THROTTLES IN GROUND RANGE
(INCLUDES LOW PITCH STOP FAILS TO RETRACT ON LANDING ROLL).
After touchdown, if the throttles are moved into the ground range with a movement that
is too rapid, it is possible to lose control of the airplane before a propeller malfunction
can be detected.
The movement from the flight range should be made at a reasonable
rate which will permit detection of a malfunction, such as a failure of the low pitch
stop to retract.
The failure of one or more propellers to reverse may result in complete
loss of directional control. Landing: at the first indication of directional control
difficulties during reversing, immediately return all throttles to GROUND IDLE.
Maintain directional control with flight controls differential braking, and as airspeed
decreases, nose wheel steering. After identifying the affected propeller, symmetrical
propellers may be reversed and the affected engine shut down while it is in ground idle.
Rudder, differential power, and brakes are the primary means of directional control until
nose wheel steering becomes more effective.
1. Throttles –ground idle
2. Condition lever – “FEATHER”:
3. Reverse symmetric engines and apply brakes as required.