COCKPIT DOME AND UTILITY LIGHTS OPERATIONAL CHECK

COCKPIT DOME CIRCUIT BREAKER DOES NOT STAY CLOSED

COCKPIT DOME AND UTILITY LIGHTS VISUAL CHECK - TM-55-1520-240-T-2_858

TM-55-1520-240-T-2 CH-47D Heilcopter Manual
Page Navigation
749

TM 55-1520-240-T 9-14.10 COCKPIT DOME AND UTILITY LIGHTS OPERATIONAL CHECK 9-14.10 INITIAL SETUP Applicable Configurations: Tools: References: TM 55-1520-240-23 Equipment Condition: TM 55-1520-240-23: Battery Connected Electrical Power On Materials: Hydraulic Power Off None Cockpit Dome Utility Lights Visual Check Per- Personnel Required: formed (Task 9-14.9) Aircraft Electrician TASK RESULT 1. 2. 3. 4. 5. 6. 7. 8. Check that LIGHTING COCKPIT DOME cir- cuit breaker (1) is closed. Set DOME switch (2) to WHT. Turn DOME switch (2) to OFF. Set DOME switch (2) to NVG. Set DOME switch (2) to OFF. Remove pilot’s utility light from overhead panel bracket. Press and release switch (4). Turn dimming control (5) through its range. Stow pilot’s utility light. Perform steps 6 and 7 with copilot’s utility Iight. If COCKPIT DOME circuit breaker (1) is open, close it. If it opens again, go to task 9-14.11. White light in both dome lights shall come on. If any dome light is not lit, go to task 9-14.12. Dome lights shall go out. Blue light in both dome lights shall come on. If any dome light is not lit, go to task 9-14.13. Dome lights shall go out. Utility light shall blink when switch (4) is pressed and released. Utility light shall increase in brightness as dimming control (5) is turned. If utility light does not come on, go to task 9-14.14. If light comes on but does not increase in brightness, replace utility light. FOLLOW-ON MAINTENANCE: TM 55-1520-240-23: Battery Disconnected Electrical Power Off END OF TASK Change 2 9-258.3

Privacy Statement
Press Release
Contact