3-18 P/N 23020-002
Cirrus SR20 and SR22 Flight Operations Manual
Section 3 Standard Operating Procedures
Engine Start
The Engine Start checklist should be accomplished as a do-list. Select
the proper engine start procedure based on outside air temperature
and internal engine temperature.
If engine has been exposed to temperatures at or below 20ºF (7ºC) for
a period of two hours or more, the use of an external pre-heater and
external power is recommended. Failure to properly pre-heat a cold
soaked engine may result in congealing within the engine, oil hoses,
and oil cooler with subsequent loss of oil flow, possibly internal
damage to the engine, and subsequent engine failure.
If the engine does not start during the first few attempts, or if the
engine firing diminishes in strength, the spark plugs have probably
frosted over. Preheat must be used before another start is attempted.
Procedure (Do-List)
1. External Power (if applicable)........................................ CONNECT
If required, pilots may want to ensure power connection and brief
assisting personnel on securing external power receptacle door.
• WARNING •
If airplane will be started using external power, keep all
personnel and power unit cables well clear of the propeller
rotation plane.
2. Brakes...................................................................................HOLD
Parking brake may be used; however, constant pressure should be
applied at all times using toe brakes.
3. Bat Master Switches ............................................ ON (check volts)
Voltage should read approximately 23-25 volts for battery starts.
4. Strobe Lights............................................................................. ON
Turn strobe lights on prior to engine start to warn others of
pending engine start. For night operations, pilot may instead
consider the use of navigation lights to avoid distracting others.
June 2008
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