TURN AND SLIP INDICATORS OPERATIONAL CHECK

TURN AND SLIP 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 8-13.3 TURN AND SLIP INDICATORS OPERATIONAL CHECK 8-13.3 INITIAL SETUP Applicable Configurations: All Tools: Inclinometer Materials: None Equipment Condition: TM 55-1520-240-23: Battery Connected Electrical Power On Hydraulic Power Off Visual Check of Turn and Slip Indicators Performed Personnel Required: Aircraft Electrician References: TM 55-1520-240-23 (Task 8-13.2) TASK RESULT 1. Check that NAV TURN & SLIP circuit breaker (1) is closed. 2. Check that NAV TURN & SLIP ClRCUlT BREAKER (2) is closed. 3. Check copilot’s turn and slip indicator (3). If circuit breaker (1) is open, close it. If it opens again, go to task 8-13.4. If circuit breaker (2) is open, close it. If it opens again, go task 8-13.4. If pointer (4) is not centered, replace indicator (3). If ball (5) is not centered, use inclinometer to verify ball position. If ball position does not agree with inclinometer, replace indicator. 4. Repeat step 3 for pilot’s turn and slip indicator (6). Then, go to step 5. 5. On next flight, have pilots check operation of their turn and slip indicators. Pointer (4) on indicators (3 and 6) shall move in direction of turn, If it does not, go to task 8-13.5. FOLLOW-ON MAINTENANCE: TM 55-1520-240-23: Battery disconnected. Electrical power off. END OF TASK 8-312 Change 17 Page 8-313 is intentionally left blank

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