BRP-Rotax
MAINTENANCE MANUAL LINE
UNSCHEDULED MAINTENANCE CHECKS
Operating limits
exceeded
An inspection of the engine must be performed if the operating limits of the engine have
been exceeded (e.g. overspeed, excessive temperature etc.), or if unusual operating con-
ditions have occurred during operation (e.g. lightning strike). In such cases the engine
must be inspected in accordance with the applicable unscheduled maintenance checks.
Recommends
inspections
The manufacturer also recommends the following inspections whenever maintenance is
carried out (where not already prescribed by the airframe manufacturer), as possible mal-
functions could have negative effects on engine operation.
part inspection possible danger
Engine cowling
• For discoloring and warping
Danger of overheating
Exhaust fixation
• Re-tighten the exhaust fixation
on the cylinder head after the
first 2 hr. of operation
Leakage
Exhaust
• Of the exhaust unit (where nec-
essary, replaced application of
LOCTITE Anti-Seize)
Risk of fracture, wear.
Smooth engine running.
Fuel filter
• Of fuel filter on airframe side (for
foreign bodies, sealing material
and loose fragmented material)
Engine may misfire.
Power loss. Engine run-
ning too lean (Engine
malfunction and
damage).
Electr. fuel pump
• Correct function
Insufficient fuel supply.
Engine running too lean
(Engine malfunction and
damage).
Battery
• Acid concentration for each cell.
Observe the manufacturers
instruction
Starting problems
Oil
• For oil contamination
• Analysis of the oil (provides addi-
tional information on the condi-
tion of the engine)
Possible engine wear
Radiators, Lines
• For damage
• Check for discoloration - and
cracks
Danger of overheating
Propeller
• Undamaged and runs true
Engine damage, unusu-
al vibrations
Effectivity: 912 i Series
Edition 2/Rev. 0
05–20–00
Page 3
September 01/2018
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