Pipistrel Virus SW 121, Pilot Operating Handbook

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3-9
Virus SW 121
Pilot Operating Handbook
POH-121-00-40-001
PAGE REV. 0
PAGE
SECTION 3
EMERGENCY PROCEDURES
APPROVED
Restarting the engine in flight after failure
The following procedures address the most common causes for engine loss.
Switching tanks and cranking will enhance starting if fuel contamination was
the cause of the failure.
NOTE
:
Engine Start in flight may be performed during 1g flight anywhere
within the normal operating envelope of the airplane.
1 Master Switch ON
2 Throttle Lever 10 mm OPEN
3 Starter (Propeller not windmilling) ENGAGE
4 Throttle Lever slowly INCREASE
NOTE: If engine does not start, perform Landing Emergencies procedures.
3.4.3 ENGINE PARTIAL POWER LOSS
Indications of a partial power loss include fluctuating RPM, reduced or
fluctuating manifold pressure, low oil pressure, high oil temperature and a
rough-running engine. Mild engine roughness in flight may be caused by
one or more spark plugs becoming fouled. A sudden engine roughness or
misfiring is usually evidence of an ignition system malfunction.
NOTE: Low or no oil pressure may be indicative of an imminent engine fail-
ure.
NOTE: A damaged propeller may cause extremely rough operation. If an
out-of-balance propeller is suspected, immediately shut down engine and
perform Forced Landing checklist.
If a partial engine failure permits level flight, land at a suitable airfield as soon
as possible. If conditions do not permit safe level flight, use partial power as
necessary to set up a forced landing pattern over a suitable landing field.
Always be prepared for a complete engine failure and consider BPRS de-
ployment if a suitable landing site is not available.