Applicable to: B22 and B25 (a ll versions)
Revision 1.3 – 02/24/ 2015
Manual B – Operations
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B.7.4. Behavior in Case of Emergency
If during use, the engine surpasses the limits prescribed in paragraph B.7.1, it
is mandatory to contact an authorized service center before using the engine
again.
Exceeding the operating limits is recorded in the ES- m instrument and will cause
the termination of the product warranty.
Each time the operating limits are exceeded it must be noted in the engine booklet, detailing the
value reached and the length of time spent outside the limit. This is required for engine
maintenance or in case the engine is sold.
For additional controls refer to the service manual.
B.7.4.1. Accidental Engine Stop – Start During Flight
a.
Exclude all unnecessary electrical loads for the flight.
b.
Check and reset the fuse which protects the injection system.
c.
According to the failure code highlighted by the ES- m instrument, turn off the unit affected
by the problem. If the ES- m instrument is not installed and the malfunction indicator light
unit is on, exclude the main ECU otherwise exclude the auxiliary ECU.
d.
Switch on the auxiliary fuel pump.
The operation of the auxiliary pump and the selection of the auxiliar y rpm
sensor serves to exclude prior two possible causes of the shutdown without
wasting time in their detection.
e.
Put the throttle lever to the idle position.
f.
Push the starter switch. If the engine fails to start, repeat the operation by selecting the second
ECU.
g.
Land as soon as possible to identify and remove the cause of the failure.
B.7.4.2. Over Rev
The engine is equipped with an electronic system that implements a decrease of controlled power
above the maximum speed allowed. So in case of a propeller setting that is not adequate for the
engine power output, the full performance of the engine is not exploited, but without producing
any particular damage to the engine.
In the event of a dive at full throttle, the engine can be dragged from the propeller caused by the
loss of altitude. In such cases may occur an over rev. If the over rev is limited to 300 rpm over
the operating limits, it is not necessary to make any verification: Write down the event, however,
on the engine booklet. If the over rev is greater than 300 rpm operating limit, see Section C.7.3.8
or contact an authorized service center be fore taking further flights.
B.7.4.3. Exceeding the Maximum Coolant Temperature
a.
Reduce the power to the minimum necessary for the flight as soon as possible and according
to the flight conditions.
