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Learjet 35 - Before Starting Engines

Learjet 35
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Leerjet 35/36 Developed for Training Purposes 2B-5
February 2007
Expanded Normal Procedures
Before Starting Engines
Upon entering the cockpit, the following switch positions should
be verified before starting any checks:
Start-Gen Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OFF
Landing Gear Switch . . . . . . . . . . . . . . . . . . . . . . . . . . DOWN
Fuel Jettison Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . OFF
Cabin Air Damper Control Knob/Switch . . . . . AS DESIRED
The damper must be in the closed position for the optional aux-
iliary heat to work and to allow the Freon air conditioner to re-
circulate cool air in the passenger compartment. On aircraft
with Cabin Blower switch, the OFF position diverts airflow
above headliners at all times except during auxiliary heating
operation.
Emergency Exit . . . . . . . . . . . . . . . . . . . . . . . AISLE CLEAR/
HANDLE UNOBSTRUCTED
Oxygen Masks/Valves/Pressure . . . . . . . . . 100%/CHECKED
Crew Masks . . . . . . . . . . . . . . . . . . . . . . . . ADJUST/CHECK
Ensure that the mask control selector valve is set to 100%.
On Scott ATO masks, check harness inflation.
PASS MASK Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . AUTO
PASS OXY Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . NORM
OXYGEN PRESSURE Gage . . . . . . . . . . . . . . . . . . .CHECK
Verify that pressure is in the green band on the indicator
(1550-1850 PSI).
Circuit Breakers . . . . . . . . . . . . . . . . . . . . . . . . . . . CHECKED
The left and right circuit breaker panels should be checked
visually and not by rubbing the hand across the row of
breakers. Always use a flashlight at night.
NOTE: Accomplish flow pattern checks, then use the Before
Starting Engines checklist as a “done” list.

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