45A HARS INTERACTIVE FD/LS CHECK 45A (ADD) (cont)

45A HARS INTERACTIVE FD/LS CHECK 45A (ADD)

45A HARS INTERACTIVE FD/LS CHECK 45A (ADD) (cont) - TM-1-1520-238-T-1_157

TM-1-1520-238-T-1 Helicopter Attack AH-64A Apache (NSN
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TM 1–1520–238–T–1 4–36.2 Change 5 4–5A HARS – INTERACTIVE FD/LS CHECK 4–5A (ADD) (cont) TASK RESULT c. On CDU, press and release 0 and 8 keys. If any MUX NO–GO appears on HOD, refer to TM 9-1230-476-20-2 for troubleshooting the MUX system. When MUX COMMUNICATION GO appears on the HOD, go to next step. TASK RESULT NOTE The aircraft must be on the ground, LAND selected and no torque from either engine for at least 90 seconds for the EXTENDED ALIGN TEST to be performed. d. On CDU, press and release 0 and 5 keys. Check that the following message appears on HOD: ENTER THE NUMBER OF THE TEST TO PERFORM 1 QUICK TEST 2 EXTENDED ALIGN TEST If 1 is selected, check that the following message appears on HOD: PUT HARS POWER SWITCH IN NORM POSITION ––WAIT––ALLOW 90 SECONDS FOR HARS WARM–UP e. On CDU, press and release 0 and 5 keys. If 2 is selected, check that the following message appears on HOD: PUT HARS POWER SWITCH TO OFF – THEN TO NORM – WAIT FOR ALIGN TO END

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