Engine Not Responding To Power Inputs; Occurence Of Uncharacteristic And Server Engine Vibra- Tions; Re-Start During Flight; Failure Of The Ems Power Supply - Rotax 912 i series Operator's Manual

4.2) Engine not responding to power inputs

Engine not re-
sponding
4.3) Occurence of uncharacteristic and severe engine vibrations
Engine vibrations

4.4) Re-Start during flight

Engine stop

4.5) Failure of the EMS power supply

Failure of the EMS

4.6) Exceeding max. admissible engine speed

Exceeding engine
speed
Effectivity: 912 i Series
OM Edition 1/Rev. 0
- Possible breakage of throttle valve actuation/linkage.
- Limited flight operation with available power possible.
- A maintenance inspection should be carried out.
- If the vibrations occur in conjunction with a loss of power then
the engine may only be firing on 3 cylinders.
- Limited flight operation.
- A maintenance inspection should be carried out.
- Starting procedure same as on ground, however, on a warm
engine.
- If the EMS power supplies (alternator A) fails then the ECU au-
tomatically switches one-time over to the second EMS power
supply (alternator B).
NOTICE WARNUNG
- While alternator B runs, no power drop is recognizable.
- Failure of both EMS power supplies (alternator A/B) result in
engine stoppage.
Remedy: Switch "ON" the backup battery switch. In this case
the power supply is provided by the aircraft battery.
- Land the aircraft at the next available opportunity.
- A maintenance inspection should be carried out.
,
- Reduce the engine speed. Any exceeding of the max. admis-
sible engine speed has to be entered by the pilot into logbook,
stating duration and extent of over engine speed.
BRP-Powertrain
No charging of battery!
page 4-3
January 01/2012