BRP-Rotax
MAINTENANCE MANUAL LINE
EXAMINATION AFTER ENGINE FAILURE
General note
In order to find possible causes of the failure, it is important to pass on all available data.
Observations on the aircraft and the engine suspension can also be of help. It is important
to pay particular attention to any of the following engine phenomena to facilitate
troubleshooting.
Engine
Engine runs erratically and misfires
part
possible cause
Fuel system
fuel supply
vapour locks
contamination
float chamber venting
air intake leakage
carburetor icing
Ignition system (shorting cable, Ignition
module, wiring connectors, charging coil,
ignition switch(s))
Spark plug
malfunction
grounding defect
wrong spark plug connection
loose connection
Rough running
engine
Rough running engine
part
possible cause
Ignition
wiring (assignment fault)
Engine
engine temperature too low
wrong intake air
Carburetor
fuel supply
contamination in float chamber or float
needle valve
float chamber venting
air intake leakage
incorrect synchronization of the carburetor
Engine stoppage
ATTENTION
Should one of the above mentioned items occur even for a short time then a de-
tailed check of the engine is necessary. The fault needs to be located and
corrected.
Effectivity: 912 Series
Rev. 0
Page 15
January 01 2020
