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TAKEOFF ABORT
Directional control problems with throttles in FLIGHT range
Engine
failure
1. Throttles- flight idle
2. Condition lever – feather
If aborting got a propeller malfunction or for any other malfunction which could
result in asymmetric power causing directional control problems when the
throttles are in the ground range, shut down the affected engine while the throttle
is in FLIGHT IDLE. Directional control problems may be encountered if throttles
are placed in the ground range and a malfunction prevents the affected propeller
from entering the ground range, or if engine power is abnormal.
Technique: To avoid directional control problems, runway permitting, delay putting throttles into
the ground range until as slow as possible (< 60 knots ideal), runway distance permitting.
Refusal speed is based on immediate and full application of the wheel brakes. It is common
practice on long runways to use symmetric reverse thrust as much as possible before applying
the brakes. Note that the critical field length and refusal speed calculations assume prompt,
maximum effort braking. Reverse thrust is most effective at higher speeds.
3. Throttles-ground idle
4. Reverse symmetric engines and brakes as required
5. If required, initiate or continue with ENGINE SHUTDOWN PROCEDURE after safe
control of the airplane is assured.
TAKEOFF CONTINUED WITH ENGINE FAILURE OR PROPELLER MALFUNCTION
Maintain directional control with flight controls and engine power as necessary
When fire is not indicated with a propeller malfunction, it is recommended that the engine be
allowed to run until at least two-engine VMCA.
Is the engine producing thrust?
Decoupling indicated by really low TIT, fuel flow, and torque.
