TM 1–1520–238–T–1
4–24
Change 9
4–3
DE–ICE – INTERACTIVE FD/LS CHECK (cont)
4–3
TASK
RESULT
CAUTION
When outside air temperature is above 25C
(77F), do not perform rotor blades de–ice
checks for periods longer than 10–minute
intervals. Failure to comply with this
precaution could cause damage to aircraft
components.
d. On pilot ANTI ICE
panel (fig. 2–22),
rotate BLADE
AUTO/TRACE/LT/
MOD selector switch
to AUTO. Set and
hold BLADE
ON/OFF/TEST
switch to TEST
(ACY). Set BLADE
ON/OFF/TEST
switch to ON (ACZ).
e. On DEK, press and
release ()/0 and
GHI/3 (ADC). On
CDU, press and
release 0 and 3
(ADD).
When PUT CANOPY
HEATER SWITCH TO ON
POSITION ACK VIA KBD
appears on HOD, go to next
step.
NOTE
Switch must be held in the test position until the ”TEST IN
PROGRESS” message disappears.
f. On pilot ANTI ICE
panel, set CANOPY
HTR switch to ON.
Go to step h (ACY). When
PLACE ROTOR BLADE
DEICE – SW TO THE ON
POSITION – AND HOLD –
ACK VIA KBD appears on
HOD, go to step g (ACZ).
