Page 41
Sub-section - 4.05
ABNORMAL PROCEDURES
FAA Approved
Original Issue: Feb 28, 2006
Hawker 850XP Pro Line 21 Airplane Flight Manual
WINDSCREEN OVERHEAT
SCREEN HEAT switch (affected side)....................... OFF then ON
The warning will extinguish when the switch is turned OFF, but may recur either immediately or
subsequently when the switch is turned ON.
Leave the switch ON and continue in that condition if necessary. The relevant screen will be
controlled at a higher temperature than normal.
SIDESCREEN OVERHEAT
Left and Right SCREEN HEAT switches ................... OFF then ON, one at a time to
identify the overheating screen.
NOTE: Left SCREEN HEAT switch controls LH Wind RH Sidescreen.
Right SCREEN HEAT switch controls RH Wind LH Sidescreen.
If Any of the SCREEN OVHT or SIDE SCRN OVHT Warnings Persist or Are Repeated,
Leave the Relevant Switch in the ON Position.
WINDSCREEN DAMAGE
Cracks or other visible damage
SCREEN HEAT (affected side).................................. OFF
Avoid flight in icing conditions.
and
and/or
L SCREEN
OVHT
R SCREEN
OVHT
ICE
PROT
and
SIDE SCRN
OVHT
ICE
PROT
For Training Purposes Only