ANTICOLLISION LIGHT OPERATIONAL CHECK

ANTI-COL BOT OR TOP CIRCUIT BREAKER DOES NOT STAY CLOSED

TM-55-1520-240-T-2 CH-47D Heilcopter Manual
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TM 55-1520-240-T 9-6.3 ANTICOLLISION LIGHT OPERATIONAL CHECK 9 - 6 .3 INITIAL SETUP References: Applicable Configurations: TM 55-1520-240-23 Equipment Condition: All TM 55-1520-240-23: Tools: Battery Connected None Electrical Power On Materials: Hydraulic Power Off None Anticollision Lights Visual Check Performed (Task Personnel Required: Aircraft Electrician (2) 9-6.2) TASK RESULT 1. 2. 3. 4. Check that LIGHTING ANTI-COL BOT cir- If LIGHTING ANTI-COL BOT circuit breaker (1) is cuit breaker (1) and ANTI-COL TOP circuit open, close it. If it opens again, go to task 9-6.4. If breaker (2) are closed. LIGHTING ANTI-COL TOP circuit breaker (2) is open, close it. If it opens again, go to task 9-6.4. Set ANTI-COLL LTS TOP or ANTI-COL The top anticollision light shall flash 40 to 60 times TOP switch (3) to ON. per minute. If it does not, go to task 9-6.5. Set ANTI-COLL LTS BOTTOM or ANTl- The bottom anticollision light shall flash 40 to 60 COL BOT switch (4) to ON. times per minute. If it does not, go to task 9-6.5. Set switches (3) and (4) to OFF. Both anticollision lights shall stop flashing. FOLLOW-ON MAINTENANCE: TM 55-1520-240-23: Electrical Power Off Battery Disconnected 9-154 Change 2

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