BRP ROTAX 914 Series, Operator'S Manual

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Bowden cable(s) for actuation of throttle valve(s) broken
Possible cause Remedy
Due to spring pressure the
throttle valve(s) will be fully
open - full throttle! Limited flying operation as wastegate
may be fully closed and control of the
boost pressure and rpm is only pos-
sible via ignition unit.
4.3) Periodical rise and drop of boost pressure and speed (boost
pressure control is surging)
Periodical rise and
drop of boost
pressure and
speed
Switching off the servo motor momentarily or permanently, must
be recorded by the pilot in the logbook, stating the exact time
and duration of switching off.
ATTENTION
If this action does not stabilize operation, switch off servo com-
pletely. If need be, reduce engine speed until boost pressure
and speed are within the operating limits again.
Orange caution lamp of TCU is not blinking
Possible cause Remedy
Pressure control is not
possible. Limited flying operation. Switch off
servo motor for a moment (max. 5
sec).
After a short regulating time opera-
tion should stabilize.
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August 01 2019 BRP-Rotax Effectivity: 914 Series
Rev. 0