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SR20 Emergency Procedures
Engine Failure In Flight
If the engine fails at altitude, pitch as necessary to establish best glide
speed. While gliding toward a suitable landing area, attempt to identify
the cause of the failure and correct it. If altitude or terrain does not
permit a safe landing, CAPS deployment may be required. Refer to
Section 10, Safety Information, for CAPS deployment scenarios and
landing considerations.
• WARNING •
If engine failure is accompanied by fuel fumes in the cockpit,
or if internal engine damage is suspected, move Mixture
Control to CUTOFF and do not attempt a restart.
1. Best Glide Speed....................................................... ESTABLISH
• Note •
With a seized or failed engine, the distance that the airplane
will glide will be more than the distance it would glide with the
engine at idle, such as during training.
If the propeller is windmilling, some additional glide range may
be achieved by moving the Power Lever to idle and increasing
airspeed by 5 to 10 knots.
2. Mixture ......................................................................... FULL RICH
3. Fuel Selector........................................................ SWITCH TANKS
4. Fuel Pump ......................................................................... BOOST
5. Alternate Induction Air ...............................................................ON
6. Ignition Switch.........................................................CHECK, BOTH
7. If engine does not start, proceed to Engine Airstart or Forced
Landing checklist, as required.
March 2010
3-12 Information Manual
Section 3 Cirrus Design
Emergency Procedures SR20
Engine Airstart
The following procedures address the most common causes for
engine loss. Switching tanks and turning the fuel pump on will
enhance starting if fuel contamination was the cause of the failure.
Leaning the mixture and then slowly enriching mixture may correct
faulty mixture control.
• Note •
Engine airstarts may be performed during 1g flight anywhere
within the normal operating envelope of the airplane.
1. Bat Master Switch ..................................................................... ON
2. Power Lever .................................................................... ½” OPEN
3. Mixture ................................................................RICH, AS REQ’D
4. Fuel Selector........................................................SWITCH TANKS
5. Ignition Switch .......................................................................BOTH
6. Fuel Pump.......................................................................... BOOST
7. Alternate Induction Air............................................................... ON
8. Alt Master Switches .................................................................OFF
9. Starter (Propeller not Windmilling) ...................................ENGAGE
10. Power Lever .......................................................slowly INCREASE
11. Alt Master Switches .................................................................. ON
12. If engine will not start, perform Forced Landing checklist.
March 2010
Information Manual 3-13
Cirrus Design Section 3
SR20 Emergency Procedures
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-sounding or 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 a magneto malfunction.
• Note •
Low oil pressure may be indicative of an imminent engine
failure – Refer to Low Oil Pressure procedure in this section
for special procedures with low oil pressure.
• Note •
A damaged (out-of-balance) 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 conditions permit. 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 CAPS deployment if a suitable
landing site is not available. Refer to Section 10, Safety Information,
for CAPS deployment scenarios and landing considerations.
If the power loss is due to a fuel leak in the injector system, fuel
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西锐20飞机信息手册 SR22 AIRPLANE INFORMATION MANUAL 1148-126(14)
