Rotax 912 iSc Maintenance Manual page 53

2) Unscheduled maintenance checks
An inspection of the engine must be performed if the operating limits of
Operating limits
exceeded
the engine have been exceeded (e.g. overspeed, excessive temperature
etc.), or if unusual operating conditions have occurred during operation
(e.g. lightning strike). In such cases the engine must be inspected in
accordance with the applicable unscheduled maintenance checks. (See
chapter
The manufacturer also recommends the following inspections whenever
Recommends in-
spections
maintenance is carried out (where not already prescribed by the airframe
manufacturer, as possible malfunctions could have negative effects on
engine operation.
Exhaust fixation
Electr. fuel pump
Radiators, Lines
Effectivity: 912 i Series
Edition 1/Rev. 0
BRP-Powertrain
MAINTENANCE MANUAL
05-50-00).
part
Engine cowling - for discoloring and warping.
- re-tighten the exhaust fixation
on the cylinder head after the
first 2 hr. of operation.
- of the exhaust unit (where nec-
Exhaust essary, replaced application of
LOCTITE Anti-Seize).
- of fuel filter on airframe side (for
foreign bodies, sealing material
Fuel filter
and loose fragmented material).
- correct function.
- acid concentration for each cell
Battery
Observe the manufacturers instruc-
tion.
- for oil contamination.
- analyse the oil (provides addi-
Oil
tional information on the condi-
tion of the engine).
- for damage.
- check for discoloration - and
cracks.
- undamaged and runs true
- carry out dynamically balancing
Propeller
including verification of propeller
track.
inspection possible danger
Danger of overheating
Leakage
Risk of fracture, wear.
Smooth engine running.
Engine may misfire. Pow-
er loss. Engine running too
lean (Engine malfunction
and damage).
Insufficient fuel supply.
Engine running to lean
(Engine malfunction and
damage).
Starting problems
Possible engine wear
Danger of overheating
Engine damage, unusual
vibrations
05-20-00
page 5
January 01/2012