TM 55-1520-240-23-7
9-124.1
LIGHT LEAK TEST
(Continued)
9-124.1
COPILOT’S CHRONOMETER LIGHT
17.
While performing steps 18 through 21, check
lighting. There shall be no white light leaks from
NVG blue/green lighting.
18.
Close CPLT CLOCK circuit breaker (26) in No.
1 PDP (23).
19.
Check copilot’s CHRONOMETER (27). Upper
and lower numbers (28) shall be visible and
blue/green. Color lighting shall be on.
20.
Turn DIM control (29) of chronometer (27).
Check chronometer light. Light shall dim over full
range of control.
21.
Turn control (29) to brightest light position.
22.
Open breaker (26) in No. 1 PDP (23). Check
CHRONOMETER (27). Numbers (28) shall not
be visible and light shall be out.
9-480
