LIGHT LEAK TEST (Continued) PILOTS CHRONOMETER LIGHT

LIGHT LEAK TEST (Continued) PILOTS INSTRUMENT PANEL LIGHTS

LIGHT LEAK TEST (Continued) COPILOTS INSTRUMENT PANEL LIGHTS

TM-55-1520-240-23-7 CH-47D Heilcopter Manual
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TM 55-1520-240-23-7 9-124.1 LIGHT LEAK TEST (Continued) 9-124.1 PILOT’S CHRONOMETER LIGHT 6. While performing steps 7 through 10, check lighting. There shall be no white light leaks from NVG blue/green lighting. 7. Close PLT CLOCK breaker (18) in No. 2 PDP (1). 8. Check pilot’s CHRONOMETER (19). Upper and lower numbers (20) shall be visible and blue/green color lighting shall be on. 9. Turn DIM control (21) of chronometer (19). Check chronometer light. Light shall dim over full range of control. 10. Turn control (21) to brightest light position. 11. Open breaker (18) in No. 2 PDP (1). Check CHRONOMETER (19). Numbers (20) shall not be visible and light shall be out. 9-478

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