RADAR mode selector switch -
SBY, then as required.
panel) - Select 50 NM or greater.
LSS mode selector switch - CLR
EHSI - Verify that a white lightning
approximately 25 NM at 45 degrees
right of center and a magenta
lightning alert symbol is displayed at
maximum selected range of 45
degrees right of center.
The lightning sensor system antenna is used in this
test, and as a result, any real lightning activity that
occurs while the test is in operation may also be
LSS mode selector switch - SBY or
While the aircrafts weight is on the wheels, the
weather radar system is forced into the standby
mode. This is a safety feature that prevents the
radar from transmitting on the ground, to eliminate
the microwave radiation hazard.
AUTOFEATHER switch - ARM.
PNEU & ENVIRO BLEED AIR valves (2)
- As required.