TM 1–1520–238–T–1
4–22
Change 9
4–3
DE–ICE – INTERACTIVE FD/LS CHECK
4–3
Personnel Required:
(2)
References:
TM 1-1520-238-T-8
TM 1-1520-238-23
TM 9-1230-476-20-2
Equipment Conditions:
Ref
Condition
TM 1-1520-238-23
Canopy anti–ice system
inspection completed
Engine anti–ice system
inspection completed
Rotor blades de–ice system
inspection completed
1. Start APU (para 3–3).
NOTE
Fire control computer must be up and looking at
the system prior to performing FD/LS check.
2. Perform FD/LS check as follows:
NOTE
Perform control/switch position changes
prompted by FD/LS within 30 seconds of
prompt message to prevent a false NO–GO
message.
If FD/LS message on HOD (fig. 2–34) does
not change within 2 seconds after prompt
control/switch position change acknowledge,
discontinue FD/LS test and go to applicable
UTILITY SYSTEM – OPERATIONAL CHECK
(TM 1-1520-238-T-8).
