~............................................................
 | Signal and Bit Location | Bit State | Description |
 ..............................................................
 |Gear Lever Switch on Bit 25 | 0 |NOT DOWN |
 2.................................…............….............1

Move the landing gear lever from the UP to the DOWN position.
Push the PREVIOUS PAGE key as necessary to show the logic
 conditions of label 272/00.
Put an actuator on the sensor, S614 (right wing gear tilt
 sensor).
Make sure the CDU display of label 272/00 is shown as follows:

 ~............................................................
 | Sensor and Bit Location | Bit State | Description |
 ..............................................................
 |L Body Tilt on Bit 19 | 0 |NOT TILTED |
 ..............................................................
 |L Wing Tilt on Bit 20 | 0 |NOT TILTED |
 ..............................................................
 |R Wing Tilt on Bit 22 | 1 |TILTED |
 ..............................................................
 |R Body Tilt on Bit 23 | 0 |NOT TILTED |
 2.................................…............….............1

Put an actuator on the sensor, S613 (right body gear tilt
 sensor).
Remove the actuator from the sensor, S614 (right wing gear tilt
 sensor).
Make sure the CDU display of label 272/00 is shown as follows:

 ~............................................................
 | Sensor and Bit Location | Bit State | Description |
 ..............................................................
 |L Body Tilt on Bit 19 | 0 |NOT TILTED |
 ..............................................................
 |L Wing Tilt on Bit 20 | 0 |NOT TILTED |
 ..............................................................
 |R Wing Tilt on Bit 22 | 0 |NOT TILTED |
 ..............................................................
 |R Body Tilt on Bit 23 | 1 |TILTED |
 2.................................…............….............1

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 ALL  ú ú 01 Page 519 ú Feb 10/97
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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747-400
MAINTENANCE MANUAL

Put an actuator on the sensor, S612 (left body gear tilt
 sensor).
Remove the actuator from the sensor, S613 (right body gear tilt
 sensor).
Make sure the CDU display of label 272/00 is shown as follows:

 ~............................................................
 | Sensor and Bit Location | Bit State | Description |
 ..............................................................
 |L Body Tilt on Bit 19 | 1 |TILTED |
 ..............................................................
 |L Wing Tilt on Bit 20 | 0 |NOT TILTED |
 ..............................................................
 |R Wing Tilt on Bit 22 | 0 |NOT TILTED |
 ..............................................................
 |R Body Tilt on Bit 23 | 0 |NOT TILTED |
 2.................................…............….............1

Put an actuator on the sensor, S615 (left wing gear tilt
 sensor).
Remove the actuator from the sensor, S612 (left body gear tilt
 sensor).
Make sure the CDU display of label 272/00 is shown as follows:

 ~............................................................
 | Sensor and Bit Location | Bit State | Description |
 ..............................................................
 |L Body Tilt on Bit 19 | 0 |NOT TILTED |
 ..............................................................
 |L Wing Tilt on Bit 20 | 1 |TILTED |
 ..............................................................
 |R Wing Tilt on Bit 22 | 0 |NOT TILTED |
 ..............................................................
 |R Body Tilt on Bit 23 | 0 |NOT TILTED |
 2.................................…............….............1
　
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本文鏈接地址：747-400 AMM 飛機維護手冊 起落架 LANDING GEAR 9(36)