TM 1-1520-240-MTF
2-38
STARTING ENGINES (CONT.)
c. EAPS ENG 1 DOORS switch — CLOSE.
Check both doors closed and BYPASS
DOORS OPEN light is off.
d. Repeat steps b and c for EAPS ENG 2.
BF 21. Pitot and Windshield Anti-Ice system — Check
as follows:
CAUTION
Do not leave the pitot heaters on for more than
5 minutes. Ground operation shortens service
life.
a. PITOT (and AFCS yaw ports heat) —
Check. ON then OFF
CAUTION
Do not operate windshield anti-ice system
above a free air temperature of +24_C.
b. WINDSHIELD ANTI-ICE switches — ON.
Check heating elements feel warm to the
touch, then OFF.
F 22. Lights.
WARNING
NVG Helicopters have an infrared filter
searchlight. Check filament operation for
presence of heat. Do not touch or look directly
into light.
BF a. PLT and CO-PLT SLT FIL switches — ON.
(1) Check both lights come on. Turn NVG
light off once illumination is verified.
